Varela, H. (2002). Richard L. Roberts. <em>Two worlds of cotton: Colonialism and the regional economy in the French Soudan, 1800-1946</em>. Stanford: Stanford University Press, 1996. El Colegio de México, A.C.
Cita Chicago Style (17a ed.)Varela, Hilda. Richard L. Roberts. <em>Two Worlds of Cotton: Colonialism and the Regional Economy in the French Soudan, 1800-1946</em>. Stanford: Stanford University Press, 1996. El Colegio de México, A.C, 2002.
Cita MLA (8a ed.)Varela, Hilda. Richard L. Roberts. <em>Two Worlds of Cotton: Colonialism and the Regional Economy in the French Soudan, 1800-1946</em>. Stanford: Stanford University Press, 1996. El Colegio de México, A.C, 2002.
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