Ewers, J. C. (1955). The horse in Blackfoot indian culture: With comparative material from other western tribes. United States Government.
Chicago-referens (17:e uppl.)Ewers, John C. The Horse in Blackfoot Indian Culture: With Comparative Material from Other Western Tribes. Washington: United States Government, 1955.
MLA-referens (9:e uppl.)Ewers, John C. The Horse in Blackfoot Indian Culture: With Comparative Material from Other Western Tribes. United States Government, 1955.
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