Ewers, J. C. (1997). Plains Indian history and culture: Essays on continuity and change. University of Oklahoma Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEwers, John C. Plains Indian History and Culture: Essays on Continuity and Change. Norman: University of Oklahoma Press, 1997.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEwers, John C. Plains Indian History and Culture: Essays on Continuity and Change. University of Oklahoma Press, 1997.
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