Walling, W. E. (1927). The Mexican question: Mexico and American-Mexican relations under Calles and Obregon. Robins Press.
Chicago-referens (17:e uppl.)Walling, William English. The Mexican Question: Mexico and American-Mexican Relations Under Calles and Obregon. New York: Robins Press, 1927.
MLA-referens (9:e uppl.)Walling, William English. The Mexican Question: Mexico and American-Mexican Relations Under Calles and Obregon. Robins Press, 1927.
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