APA (7th ed.) Zitazioa

Chiras, D. D. (1993). Biology, the web of life. West Pub. Co..

Chicago Style (17th ed.) Zitazioa

Chiras, Daniel D. Biology, the Web of Life. Minneapolis: West Pub. Co., 1993.

MLA (9th ed.) Zitazioa

Chiras, Daniel D. Biology, the Web of Life. West Pub. Co., 1993.