Cita APA (7a ed.)

Yeager, D. G. (1947). Your Western National Parks: A guide. Dodd, Mead & company.

Cita Chicago Style (17a ed.)

Yeager, Dorr G. Your Western National Parks: A Guide. New York: Dodd, Mead & company, 1947.

Cita MLA (9a ed.)

Yeager, Dorr G. Your Western National Parks: A Guide. Dodd, Mead & company, 1947.