Cita APA (7a ed.)

Roosevelt, T., & Remington, F. (1966). Ranch life and the hunting trail. University Microfilms.

Cita Chicago Style (17a ed.)

Roosevelt, Theodore, y Frederic Remington. Ranch Life and the Hunting Trail. Ann Arbor, [Mich.]: University Microfilms, 1966.

Cita MLA (9a ed.)

Roosevelt, Theodore, y Frederic Remington. Ranch Life and the Hunting Trail. University Microfilms, 1966.