The Rif War was an armed conflict fought from 1920 to 1927 between the colonial power Spain (later joined by France) and the Berber tribes of the Rif mountainous region of Morocco. Led by Abd el-Krim, the Riffians at first inflicted several defeats on the Spanish forces by using guerrilla tactics and captured European weapons. After France's military intervention against Abd el-Krim's forces and the major landing of Spanish troops at Al Hoceima, considered the first amphibious landing in history to involve the use of tanks and aircraft, Abd el-Krim surrendered to the French and was taken into exile.
|Part of Interwar period and Berber separatism in North Africa|
(clockwise from top left)
|Commanders and leaders|
M. A. er Raisuni (POW)
Total: 465,000 soldiers
Spanish estimate: 80,000 irregulars(Never more than 20,000 with firearms) including less than 7,000 "elites"|
autumn 1925: 35,000–50,000
March 1926: less than 20,000
|Casualties and losses|
|30,000 casualties(of which 10,000 dead)|
In 1909, Rifian tribes aggressively confronted Spanish workers of the iron mines of the Rif, near Melilla, which led to the intervention of the Spanish Army. The military operations in Jebala, in the Moroccan West, began in 1911 with the Larache Landing. Spain worked to pacify a large part of the most violent areas until 1914, a slow process of consolidation of frontiers that lasted until 1919 due to World War I.
The following year, after the signing of the Treaty of Fez, the northern Moroccan area was adjudicated to Spain as a protectorate. The Riffian populations strongly resisted the Spanish, unleashing a conflict that would last for several years. In 1921, the Spanish troops suffered the catastrophic Disaster of Annual in addition to a rebellion led by Rifian leader Abd el-Krim. As a result, the Spanish retreated to a few fortified positions while Abd el-Krim ultimately created an entire independent state: the Republic of the Rif. The development of the conflict and its end coincided with the dictatorship of Primo de Rivera, who took on command of the campaign from 1924 to 1927. In addition, and after the Battle of Uarga in 1925, the French intervened in the conflict and established a joint collaboration with Spain that culminated in the Alhucemas landing which proved a turning point. By 1926 the area had been pacified; Abd-el-Krim surrendered in July 1927; and the Spanish regained the previously lost territory.
The Rif War is still considered controversial among historians. Some see in it a harbinger of the decolonization process in North Africa. Others consider it one of the last colonial wars, as it was the decision of the Spanish to conquer the Rif — nominally part of their Moroccan protectorate but de facto independent — that catalyzed the entry of France in 1924.
The Rif War left a deep memory both in Spain and in Morocco. The Riffian insurgency of the 1920s can be interpreted as a precursor to the Algerian War of Independence, which took place three decades later.
During the early 20th century, Morocco was divided into protectorates ruled by France and Spain. The Rif region had been assigned to Spain, but given that the Sultans of Morocco had been unable to exert control over the region, Spanish sovereignty over the Rif was strictly theoretical. For centuries, the Berber tribes of the Rif had fought off any attempt of outsiders to impose control on them. Though nominally Muslim, the tribes of the Rif had continued many pagan animist practices, such as worshipping water spirits and forest spirits. Attempts by the Moroccan sultans to impose orthodox Islam on the Rif had been successfully resisted by the tribesmen.
For centuries, Europeans had seen the Rif mountains and people on the mountains from ships in the Mediterranean Sea, but almost no European had ever ventured into the area. Walter Burton Harris, the Morocco correspondent for The Times, who covered the war, wrote that as late as 1912 only "one or two Europeans had been able to visit the cedar forests that lie south of Fez. A few had traveled in the southern Atlas and pushed on into the Sus...and that was almost all". As Harris wrote, the Berbers "were often as inhospitable to the Arab as they were to the foreigner", and generally killed any outsiders who ventured into their territory.
Vincent Sheean, who covered the war for The New York Times, wrote that the Rif was a truly beautiful countryside of "Crimson mountains flung against a sky of hieratic blue, gorges magnificent and terrifying, peaceful green valleys between protecting precipices", a place that reminded him of his native Colorado. The Rif was also rich in high-grade iron, which could be easily extracted via open pit mining. The promise of the Spanish state collecting revenues in the form of taxes and royalties from iron mining here was an incentive for it to bring the Rif under its control.
The Crown granted the concession to mine iron in the Rif to the millionaire Don Horacio Echevarrieta. By 1920 he had brought out 800,000 tons of valuable high grade iron through relatively inexpensive open pit mining. Though profitable, iron mining caused much environmental damage and required the displacement of the native people. As they received no share of the profits, the Rifians soon began to oppose the mining in their territory.
When King Alfonso XIII of Spain ascended to the throne in 1886, Spain was considered a world power, with colonies in the Americas, Africa, Asia and the Pacific. But in the Spanish–American War, Spain lost Cuba, Puerto Rico, and the Philippines, and in 1899 it sold the Mariana and Caroline Islands to Germany, retaining only some footholds on the Moroccan coast and Spanish Guinea. To compensate for the lost empire in the Americas and Asia, there emerged a powerful Africanist faction in Spain led by Alfonso, who wanted a new empire in Africa. Finally, the Roman Catholic Church was politically powerful in Spain, and much of the Spanish clergy preached the need for new crusade to continue the Reconquista by conquering Morocco, thus adding their voices to the Africanist choir. For all these reasons, Spain began pushing into the Rif in 1909.
The Berber tribesmen had a long tradition of fierce fighting skills, combined with high standards of fieldcraft and marksmanship. They were capably led by Abd el-Krim, who showed both military and political expertise. However, the Rifian regular army was never a very large force. The elite of the Rifian forces formed regular units which according to Abd el-Krim, quoted by the Spanish General Manuel Goded, numbered 6,000 to 7,000. Other sources put it much lower, at around 2,000 to 3,000.
The remaining Rifians were tribal militia selected by their Caids; they were not liable to serve away from their homes and farms for more than 15 consecutive days. General Goded estimated that at their peak, in June 1924, the Rifian forces numbered about 80,000 men, although Abd el-Krim was never able to arm more than 20,000 men at a time. However, this force was largely adequate in the early stages of the war. In the final days of the war, Rifian forces numbered about 12,000 men. In addition, Rifian forces were not well armed, with weapons badly maintained and in poor condition.
Initially, the Spanish forces in Morocco were largely composed of conscripts and reservists from Spain itself. These "Peninsular" troops were poorly supplied and prepared, few had marksmanship skills and proper battle training, and widespread corruption was reported amongst the officer corps, reducing supplies and morale. Of the Spanish troops in Morocco in 1921, well over half were completely illiterate conscripts from the poorest elements of Spanish society who had been sent to Morocco with minimal training. Despite Silvestre's assurances that his equipment was sufficient to defeat the Rifians, in fact about three-quarters of the rifles at the Melilla arsenal were in shoddy condition due to poor maintenance, and a report from late 1920, which Silvestre had never bothered to read, warned that many of the rifles held there were either unusable or more of a danger to the soldier firing them than to the enemy.
The average Spanish soldier in Morocco in 1921 was paid the equivalent of thirty-four US cents per day, and lived on a simple diet of coffee, bread, beans, rice and the odd piece of meat. Many soldiers bartered their rifles and ammunition at the local markets in exchange for fresh vegetables. The barracks that the soldiers lived in were unsanitary and medical care at the few hospitals very poor. Up in the mountains, Spanish soldiers lived in small outposts known as blocaos, which the American historian Stanley Payne observed: "Many of these lacked any sort of toilet, and the soldier who ventured out of the filthy bunker risked exposure to the fire of lurking tribesmen".
Continuing a practice first begun in Cuba, corruption flourished amongst the venal Spanish officer corps, with goods meant for the troops being sold on the black market and the funds intended to build roads and railroads in Morocco ending up in the pockets of senior officers. A high number of Spanish officers could not read maps, which explains why Spanish units so frequently got lost in the Rif mountains. In general, studying war was not considered to be a good use of an officer's time, and most officers devoted their time in Melilla in words of the American journalist James Perry to "gambling and whoring, sometimes molesting the native Moorish women". Morale in the Army was extremely poor and most Spanish soldiers just wanted to go home and leave Morocco forever. Because of the prostitutes from Spain, who attached themselves in great number to the Spanish bases in Morocco, venereal diseases were rampant in the Spanish Army. Silvestre was well aware of the poor morale of his soldiers, but he did not regard this as a problem, believing that his enemy was so inferior that the problems afflicting his troops were not an issue.
Even with their numerical superiority, the "Peninsular" troops proved no match for the highly skilled and motivated Rifian forces. Accordingly, much reliance came to be placed on the mainly professional units comprising Spain's Army of Africa. Since 1911, these had included regiments of Moroccan Regulares, who proved to be excellent soldiers.
The initiative was unpopular in parts of Spain as well. In 1909, during early conflicts with the Rif tribesmen, an attempt by the Spanish government to call up reservists led to a working class uprising in Barcelona known as Tragic Week. The Catalan trade unions, many led by anarchists, argued that the working class of Barcelona had no quarrel with the people of the Rif.
After the Tragic Week of 1909, the Spanish government starting in 1911 tried to raise as many Regulare units as possible to avoid further working class resistance to colonial wars as much of the Spanish working class had no desire to see their sons sent to Morocco, beginning a policy of what the Spanish historian Jose Alvarez called "Moroccanizing" the conquest of the Rif. Following the difficulties and setbacks that it had experienced in 1909-11, the Spanish army began to adopt much in organization and tactics from the French North African forces garrisoning most of Morocco and neighboring Algeria. Particular attention was paid to the French Foreign Legion and a Spanish equivalent, the Tercio de Extranjeros ("Foreigners brigade"), known in English as the "Spanish Legion", was formed in 1920. The regiment's second commander was then-Col. Francisco Franco, having risen rapidly through the ranks. In the Rif war, it was the Regulares and the Spanish Foreign Legion founded in 1919 that provided the elite forces that won Spain the war. Less than 25% of this "Foreign Legion" were, in fact, non-Spanish. Harshly disciplined and driven, they quickly acquired a reputation for ruthlessness. As their number grew, the Spanish Legion and the Regulares increasingly led offensive operations after the disasters that had been suffered by the conscript forces.
Course of war
As an outcome of the Treaty of Fez (1912) Spain gained possession of the lands around Melilla and Ceuta. In 1920, the Spanish commissioner, General Dámaso Berenguer, decided to conquer the eastern territory from the Jibala tribes, but had little success. The second-in-command was General Manuel Fernández Silvestre who commanded the eastern sector. Silvestre had spread out his troops out in 144 forts and blocaos from Sidi Dris on the Mediterranean across the Rift mountains to Annual and Tizi Azza and on to Melilla. A typical blocao held about dozen men while the larger forts had about 800 men. Silvestre, known for his boldness and impetuosity, had pushed his men too deep into the Rif mountains hoping to reach Alhucemas Bay without undertaking the necessary work to build a logistical support network capable of supplying his men out in the blocaos up in the Rif mountains. Krim had sent Silvestre a letter warning him not to cross the Amekran river or else he would die. Silvestre commented to the Spanish press about the letter that: "This man Abd el-Krim is crazy. I'm not going to take seriously the threats of a little Berber caid [judge] whom I had at my mercy a short time ago. His insolence merits a new punishment". Krim allowed Silvestre to advance deep into the Rif, knowing the Spanish logistics were in the words of the Spanish historian Jose Alvarez "tenuous" at best.
On 1 July 1921, the Spanish army in north-eastern Morocco under Silvestre collapsed when defeated by the forces of Abd el-Krim, in what became known in Spain as the disaster of Annual, some 8,000 soldiers and officers reported killed or disappeared out of some 20,000. The final Spanish death toll, both at Annual and during the subsequent rout that took Rifian forces to the outskirts of Melilla, was reported to the Cortes Generales as totaling 13,192. The Spanish were pushed back and during the following five years, occasional battles were fought between the two. The Rifian forces advanced to the east and captured over 130 Spanish military posts.
By late August 1921, Spain lost all the territories it had gained since 1909. Spanish troops were pushed back to Melilla, which was their biggest base in the eastern Rif. Spain still had 14,000 soldiers in Melilla. However, Abd el-Krim ordered his forces not to attack the town. He subsequently told the writer J. Roger-Matthieu that since citizens of other European nations were residing in Melilla, it was feared they would intervene in the war should their citizens come to harm. Other reasons included the dispersal of Rifian fighters from several loosely allied tribes following the victory at Annual; and the arrival in Melilla of substantial reinforcements from the Legion and other Spanish units recalled from operations in western Morocco. By the end of August Spanish forces at Melilla numbered 36,000 under General Jose Sanjurjo and the slow process of recovering the lost territory could begin.
Thus the Spanish could keep their biggest base in the eastern Rif. Later Abd el-Krim would admit: "I bitterly regret this order. It was my biggest mistake. All the following tenor of events happened because of this mistake."
By January 1922 the Spanish had retaken their major fort at Monte Arruit (where they found the bodies of 2,600 of the garrison) and had reoccupied the coastal plain as far as Tistutin and Batel. The Rifian forces had consolidated their hold of the inland mountains and stalemate was reached.
The Spanish military suffered losses even at sea; in March the transport ship Juan de Joanes was sunk in Alhucemas Bay by Riffian coastal batteries, and in August 1923, while shelling Riffian positions, the battleship España ran aground off Cape Tres Forcas and was eventually scrapped in situ.
In a bid to break the stalemate, the Spanish military turned to the use of chemical weapons against the Riffians.
The Rif War had starkly polarized Spanish society between the africanistas who wanted to conquer an empire in Africa vs. the abandonistas who wanted to abandon Morocco as not worth the blood and treasure. After the "Disaster of the Annual", Spain's war in the Rif went from bad to worse, and as the Spanish were barely hanging on to Morocco, support for the abandonistas grew as many people could see no point to the war. In August 1923, Spanish soldiers embarking for Morocco mutinied at the railway stations, other soldiers in Malaga simply refused to board the ships that were to take them to Morocco, while in Barcelona huge crowds of left-wingers had staged anti-war protests at which Spanish flags were burned while the flag of the Rif Republic was waved about.
With the africanists comprising only a minority, it was clear that it was only a matter of time before the abandonistas forced the Spanish to give up on the Rif, which was part of the reason for the military coup d'état later in 1923. On September 13, 1923, General Miguel Primo de Rivera, 2nd Marqués de Estella, seized power in a military coup d'état. General Primo de Rivera was in the words of the American journalist James Perry a "moderate dictator" who was convinced that the divisions between the africanists vs. the abandonistas had pushed Spain to the brink of civil war, and who had seized power to find a way out of the crisis. General Primo de Rivera soon concluded that the war was unwinnable, and considered pulling back his troops to the coast with the aim of at least temporarily abandoning the Rif. In late July 1924, Primo de Rivera visited a Spanish Foreign Legion post at Ben Tieb in the Rif, and was served a banquet of eggs in different forms. In Spanish culture, eggs are a symbol of the testicles, and the dishes were intended to send a clear message. Primo de Rivera responded calmly that the army would be required to abandon only the minimum of territory and that junior officers should not dictate the measures necessary to resolve the Moroccan problem. However he subsequently modified the plans for withdrawal, pulling the Spanish forces back from Chaouen and the Wad Lau region to a prepared fortified boundary named the "Primo Line".
In May 1924, the French Army had established a line of out-posts north of the Oureghla River in disputed tribal territory. On 12 April 1925, an estimated 8,000 Rifians attacked this line and in two weeks over 40 of 66 French posts had been stormed or abandoned. French casualties exceeded 1,000 killed, 3,700 wounded and 1,000 missing – representing losses of over 20 percent of their forces deployed in the Rif. The French accordingly intervened on the side of Spain, employing up to 160,000 well-trained and -equipped troops from Metropolitan, Algerian, Senegalese and Foreign Legion units, as well as Moroccan regulars (tirailleurs) and auxiliaries (goumiers). With total Spanish forces now numbering about 90,000 the Rifian forces were now seriously outnumbered by their Franco-Spanish opponents. Final French deaths from battle and disease, in what had now become a major war, were to total 8,628.
On September 17, 1925, a squadron of American mercenary flyers in the service of France bombarded Chefchaouen.
For the final attack commencing on 8 May 1925, the French and Spanish had ranged 123,000 men, supported by 150 aircraft, against 12,000 Rifians. Superior manpower and technology soon resolved the course of the war in favour of France and Spain. The French troops pushed through from the south while the Spanish fleet and army secured Alhucemas Bay by an amphibious landing, and began attacking from the north. After one year of bitter resistance, Abd el-Krim, the leader of both the tribes, surrendered to French authorities, and in 1926 Spanish Morocco was finally retaken.
However, the unpopularity of the war in Spain and the earlier humiliations of the Spanish military contributed to the instability of the Spanish government and the military coup of 1923.
- Zaian War, the 1914–21 conflict between the French and Berber tribesmen in Morocco.
- Chemical weapons in the Rif War
- Alleged British use of chemical weapons in Mesopotamia in 1920
- Timeline for the Third Rif War (1920–25) Archived 2011-12-20 at the Wayback Machine Steven Thomas
- David S. Woolman, page 186 "Rebels in the Rif", Stanford University Press
- David H. Slavin, The French Left and the Rif War, 1924–25: Racism and the Limits of Internationalism, Journal of Contemporary History, Vol. 26, No. 1, January 1991, pg 5–32
- Pennell, C. R.; page 214
- David S. Woolman, page 149-151 "Rebels in the Rif", Stanford University Press
- David E. Omissi: Air Power and Colonial Control: The Royal Air Force, 1919–1939, Manchester University Press, 1990, ISBN 0-7190-2960-0, page 188.
- Micheal Clodfelter: Warfare and armed conflicts: a statistical reference to casualty and other figures, 1500–2000, McFarland, 2002, ISBN 0-7864-1204-6, page 398.
- Meredith Reid Sarkees, Frank Whelon Wayman: Resort to war: a data guide to inter-state, extra-state, intra-state, and non-state wars, 1816–2007, CQ Press, 2010, ISBN 0-87289-434-7, page 303.
- Douglas Porch, "Spain's African Nightmare," MHQ: Quarterly Journal of Military History (2006) 18#2 pp 28–37.
- Jan Pascal, L’Armée française face à Abdelkrim ou la tentation de mener une guerre conventionnelle dans une guerre irrégulière 1924-1927, Cairn.Info, 2009, p. 732.
- Entelis, John P. (9 March 2017). "La Guerre du Rif: Maroc (1925–1926)". The Journal of North African Studies. 22 (3): 500–503. doi:10.1080/13629387.2017.1300383.
- Perry, James Arrogant Armies, Edison: Castle Books, 2005 page 273.
- Perry, James Arrogant Armies, Edison: Castle Books, 2005 page 274.
- Alvarez, José "Between Gallipoli and D-Day: Alhucemas, 1925" pages 75-98 from The Journal of Military History, Vol. 63, No. 1, January 1999 page 77.
- C. R. Pennell – A Country with a government and a Flag: The Rif War in Morocco, 1921–1926, Outwell, Wisbech, Cambridgeshire, England: Middle East & North African Studies Press Ltd, 1986, ISBN 0-906559-23-5, page 132; (University of Melbourne – University Library Digital Repository)
- "Rebels in the Rif" pages 149–152, David S. Woolman, Stanford University Press, 1968
- Woolman, page 149
- David S. Woolman, page 98 "Rebels in the Rif", Stanford University Press
- David S. Woolman, page 57 "Rebels in the Rif", Stanford University Press
- Perry, James Arrogant Armies Great Military Disasters and the Generals Behind Them, Edison: Castle Books, 2005 page 277
- Perry, James Arrogant Armies Great Military Disasters and the Generals Behind Them, Edison: Castle Books, 2005 page 278
- Perry, James Arrogant Armies Great Military Disasters and the Generals Behind Them, Edison: Castle Books, 2005 page 278.
- David S. Woolman, page 44 "Rebels in the Rif", Stanford University Press
- Alvarez, Jose "Between Gallipoli and D-Day: Alhucemas, 1925" pages 75-98 from The Journal of Military History, Vol. 63, No. 1, January 1999 page 77.
- Alvarez, Jose "Between Gallipoli and D-Day: Alhucemas, 1925" pages 75-98 from The Journal of Military History, Vol. 63, No. 1, January 1999 page 78.
- David S. Woolman, page 68 "Rebels in the Rif", Stanford University Press
- Alvarez, Jose "Between Gallipoli and D-Day: Alhucemas, 1925" pages 75-98 from The Journal of Military History, Vol. 63, No. 1, January 1999 page 79.
- Alvarez, Jose "Between Gallipoli and D-Day: Alhucemas, 1925" pages 75-98 from The Journal of Military History, Vol. 63, No. 1, January 1999 page 81.
- Perry, James Arrogant Armies Great Military Disasters and the Generals Behind Them, Edison: Castle Books, 2005 page 279
- Perry, James Arrogant Armies Great Military Disasters and the Generals Behind Them, Edison: Castle Books, 2005 page 279.
- David S. Woolman, page 96 "Rebels in the Rif", Stanford University Press
- Dirk Sasse, Franzosen, Briten und Deutsche im Rifkrieg 1921–1926, Oldenbourg Wissenschaftsverlag, 2006, ISBN 3-486-57983-5, pg 40–41 (in German)
- Arturo Barea, pp. 313-314 The Forging of a Rebel, SBN 670-32367-5, The Viking Press 1974
- David S. Woolman, pp. 95–102 "Rebels in the Rif", Stanford University Press 1968
- "Juan de Joanes – Trasmeships". www.trasmeships.es. Archived from the original on 2015-09-26. Retrieved 2015-10-14.
- Fernandez, Rafael (2007). The Spanish Dreadnoughts of the España class. Warship Internacional. Issue 41. Toledo, Ohio: International Naval Research Organization. pp. 63–117.
- Strike from the Sky: The History of Battlefield Air Attack, 1910–1945, Richard P. Hallion, University of Alabama Press, 2010, ISBN 0-8173-5657-6, page 67
- Perry, James Arrogant Armies Great Military Disasters and the Generals Behind Them, Edison: Castle Books, 2005 page 286.
- David S. Woolman, page 131 "Rebels in the Rif", Stanford University Press
- David S. Woolman, page 132 "Rebels in the Rif", Stanford University Press
- David S. Woolman, page 133 Rebels in the Rif, Stanford University Press
- Martin Windrow, p15 "French Foreign Legion 1914–1945, ISBN 1-85532-761-9
- The French empire between the wars: imperialism, politics and society, Martin Thomas, Manchester University Press, 2005, ISBN 0-7190-6518-6, page 212
- David S. Woolman, page 186 "Rebels in the Rif", Stanford University Press
- "Abd el-Krim". Encyclopædia Britannica. I: A-Ak – Bayes (15th ed.). Chicago, Illinois: Encyclopædia Britannica, Inc. 2010. p. 18. ISBN 978-1-59339-837-8.
- General R. Hure, page 252 "L'Armee d'Afrique 1830–1962", Paris-Limoges, 1979
- Babas, Latifa. "History : When an American squadron violated US neutrality laws, bombing Chefchaouen". en.yabiladi.com. Retrieved 2019-07-14.
- Balfour, Sebastian. Deadly Embrace: Morocco and the Road to the Spanish Civil War (Oxford 2002) online
- Chandler, James A. "Spain and Her Moroccan Protectorate 1898–1927," Journal of Contemporary History (1975) 10#2 pp. 301–322 in JSTOR
- La Porte, Pablo. "'Rien à ajouter': The League of Nations and the Rif War (1921—1926)," European History Quarterly (2011) 41#1 pp 66–87, online
- Pennell, C. R. "Ideology and Practical Politics: A Case Study of the Rif War in Morocco, 1921–1926," International Journal of Middle East Studies (1982) 14#1, pp 19–33. in JSTOR
- Pennell, C. R. "Women and Resistance to Colonialism in Morocco: The Rif 1916–1926," Journal of African History (1987) 28#1 pp. 107–118 in JSTOR
- Pennell, C. R. Country with a Government and a Flag: The Rif War in Morocco, 1921–1926 (1986)
- Porch, Douglas. "Spain's African Nightmare," MHQ: Quarterly Journal of Military History (2006) 18#2 pp 28–37.
- Sacanell, Enrique. "El general Sanjurjo". Editorial La Esfera de Los Libros, Madrid (2004) ISBN 978-84-9734-205-6
- Steven Thomas, 1911–1927 Rif War / Second Moroccan War
- The Rif War 1893 (sic) on OnWar.com.
- Chemical Weapons: Tenth Session of the Conference of the States Parties to the CWC 7–11 November 2005, The Hague, The Netherlands
- Rif war
- David Montgomery Hart, The Aith Waryaghar of the Moroccan Rif : an ethnography and history. Published for the Wenner-Gren Foundation for Anthropological Research [by] University of Arizona Press, c1976. xxiii, 556 p. : ill. ; 28 cm. ISBN 0-8165-0452-0 :
Series Viking Fund publications in anthropology ; no. 55, Notes. Bibliography: pages 533–546. Tucson, Arizona, (1976)