APA (7th ed.) Zitazioa

(1999). Practical approaches to the conservation of biological: Diversity. Island Pr.

Chicago Style (17th ed.) Zitazioa

Practical Approaches to the Conservation of Biological: Diversity. Washington, D. C: Island Pr, 1999.

MLA (9th ed.) Zitazioa

Practical Approaches to the Conservation of Biological: Diversity. Island Pr, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.