Cita APA (7a ed.)

Beal, M. D. (1949). The story of man in Yellowstone. Caxton Printers.

Cita Chicago Style (17a ed.)

Beal, Merrill D. The Story of Man in Yellowstone. Caldwell, Idaho: Caxton Printers, 1949.

Cita MLA (8a ed.)

Beal, Merrill D. The Story of Man in Yellowstone. Caxton Printers, 1949.

Precaución: Estas citas no son 100% exactas.