Cita APA (7a ed.)

Simpson, G. G. (1944). Tempo and mode in evolution. Hafner.

Cita Chicago Style (17a ed.)

Simpson, George Gaylord. Tempo and Mode in Evolution. New York: Hafner, 1944.

Cita MLA (8a ed.)

Simpson, George Gaylord. Tempo and Mode in Evolution. Hafner, 1944.