Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (8th εκδ.)

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