APA (7th ed.) Citation

Simpson, G. G. (1937). Skull structure of the Multituberculata.

Chicago Style (17th ed.) Citation

Simpson, George Gaylord. Skull Structure of the Multituberculata. New York, 1937.

MLA (9th ed.) Citation

Simpson, George Gaylord. Skull Structure of the Multituberculata. 1937.

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