APA (7th ed.) Zitazioa

Pfeffer, P. (1989). Predators and Predation. Facts On File.

Chicago Style (17th ed.) Zitazioa

Pfeffer, Pierre. Predators and Predation. New York: Facts On File, 1989.

MLA (9th ed.) Zitazioa

Pfeffer, Pierre. Predators and Predation. Facts On File, 1989.