APA (7th ed.) Zitazioa

Hickman, c. P., Hickman, F., & Roberts, L. S. (1989). Biology of animals (4th ed.). Mosby college.

Chicago Style (17th ed.) Zitazioa

Hickman, cleveland P., Frances Hickman, eta Larry S. Roberts. Biology of Animals. 4th ed. St. Louis: Mosby college, 1989.

MLA (9th ed.) Zitazioa

Hickman, cleveland P., et al. Biology of Animals. 4th ed. Mosby college, 1989.