APA (7th ed.) Zitazioa

Grimmet,Richard. (1999). Birds of the Indian Subcontinent: Helm Field Guides. Oxford University.

Chicago Style (17th ed.) Zitazioa

Grimmet,Richard. Birds of the Indian Subcontinent: Helm Field Guides. London: Oxford University, 1999.

MLA (9th ed.) Zitazioa

Grimmet,Richard. Birds of the Indian Subcontinent: Helm Field Guides. Oxford University, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.