Sapolisky, R. M. (2004). Why zebras don't get ulcers (Third edition.). An owl book.
Chicago-Zitierstil (17. Ausg.)Sapolisky, Robert M. Why Zebras Don't Get Ulcers. Third edition. New York: An owl book, 2004.
MLA-Zitierstil (9. Ausg.)Sapolisky, Robert M. Why Zebras Don't Get Ulcers. Third edition. An owl book, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.