APA (7th ed.) Citation

Simpson, G. G. (1932). The supposed occurrences of Mesozoic mammals in South America. The American Museum of Natural History.

Chicago Style (17th ed.) Citation

Simpson, George Gaylord. The Supposed Occurrences of Mesozoic Mammals in South America. New York City: The American Museum of Natural History, 1932.

MLA (9th ed.) Citation

Simpson, George Gaylord. The Supposed Occurrences of Mesozoic Mammals in South America. The American Museum of Natural History, 1932.