Cita APA (7a ed.)

Ewers, J. C. (1944). The story of the Blackfeet. U.S. Indian Service.

Cita Chicago Style (17a ed.)

Ewers, John C. The Story of the Blackfeet. Washington: U.S. Indian Service, 1944.

Cita MLA (8a ed.)

Ewers, John C. The Story of the Blackfeet. U.S. Indian Service, 1944.

Precaución: Estas citas no son 100% exactas.