APA (7th ed.) Zitazioa

Winfrey, L. P. (1982). Pig appeal. Walker.

Chicago Style (17th ed.) Zitazioa

Winfrey, Laurie Platt. Pig Appeal. New York: Walker, 1982.

MLA (9th ed.) Zitazioa

Winfrey, Laurie Platt. Pig Appeal. Walker, 1982.