APA (7th ed.) Zitazioa

Urry, L. A. a. (2014). Campbell biology in focus. Pearson.

Chicago Style (17th ed.) Zitazioa

Urry, Lisa A.[et al.]. Campbell Biology in Focus. Boston: Pearson, 2014.

MLA (9th ed.) Zitazioa

Urry, Lisa A.[et al.]. Campbell Biology in Focus. Pearson, 2014.