APA (7th ed.) Citation

Catlin, G., & Ewers, J. C. (1976). O-kee-pa: A religious ceremony and other customs of the Mandans Bison book.

Chicago Style (17th ed.) Citation

Catlin, George, and John C. Ewers. "O-kee-pa: A Religious Ceremony and Other Customs of the Mandans." Bison Book 1976.

MLA (8th ed.) Citation

Catlin, George, and John C. Ewers. "O-kee-pa: A Religious Ceremony and Other Customs of the Mandans." Bison Book, 1976.