APA (7th ed.) Citation

Sapolsky. (2004). Why zebras don't get ulcers (3rd ed.). St. Martin's Press.

Chicago Style (17th ed.) Citation

Sapolsky. Why Zebras Don't Get Ulcers. 3rd ed. New York: St. Martin's Press, 2004.

MLA (8th ed.) Citation

Sapolsky. Why Zebras Don't Get Ulcers. 3rd ed. St. Martin's Press, 2004.