APA (7th ed.) Zitazioa

Hetherington, L. (1987). All about goats (2a. ed.). Farming Press.

Chicago Style (17th ed.) Zitazioa

Hetherington, Lois. All About Goats. 2a. ed. Ipswich: Farming Press, 1987.

MLA (9th ed.) Zitazioa

Hetherington, Lois. All About Goats. 2a. ed. Farming Press, 1987.