APA (7th ed.) Citation

Simpson, G. G. (1944). The Major features of evolution. Columbia University.

Chicago Style (17th ed.) Citation

Simpson, George Gaylord. The Major Features of Evolution. Columbia University, 1944.

MLA (8th ed.) Citation

Simpson, George Gaylord. The Major Features of Evolution. Columbia University, 1944.

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