Cita APA (7a ed.)

Simpson, G. G. (1965). The gepgraphy of evolution. Chilton.

Cita Chicago Style (17a ed.)

Simpson, George Gaylord. The Gepgraphy of Evolution. Philadelphia: Chilton, 1965.

Cita MLA (8a ed.)

Simpson, George Gaylord. The Gepgraphy of Evolution. Chilton, 1965.