APA (7th ed.) Citation

Simpson, G. G. (1944). Tempo and mode in evolution / George Gaylord Simpson. Columbia University Press.

Chicago Style (17th ed.) Citation

Simpson, George Gaylord. Tempo and Mode in Evolution / George Gaylord Simpson. New York ; Guildford: Columbia University Press, 1944.

MLA (9th ed.) Citation

Simpson, George Gaylord. Tempo and Mode in Evolution / George Gaylord Simpson. Columbia University Press, 1944.

Warning: These citations may not always be 100% accurate.