APA (7th ed.) Citation

Hey, J. (2001). Genes, categories, and species: The evolutionary and cognitive causes of the species problem. Oxford University Press.

Chicago Style (17th ed.) Citation

Hey, Jody. Genes, Categories, and Species: The Evolutionary and Cognitive Causes of the Species Problem. Oxford: Oxford University Press, 2001.

MLA (8th ed.) Citation

Hey, Jody. Genes, Categories, and Species: The Evolutionary and Cognitive Causes of the Species Problem. Oxford University Press, 2001.

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