Ewers, J. C. (1955). The horse in Blackfoot Indian culture: With comparative material from other western tribes. U.S. Govt. Print. Off..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEwers, John C. The Horse in Blackfoot Indian Culture: With Comparative Material from Other Western Tribes. Washington: U.S. Govt. Print. Off., 1955.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEwers, John C. The Horse in Blackfoot Indian Culture: With Comparative Material from Other Western Tribes. U.S. Govt. Print. Off., 1955.
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