APA (7th ed.) Zitazioa

Alderton, D. (2014). The World Encyclopedia of Birds. Hermes House.

Chicago Style (17th ed.) Zitazioa

Alderton, David. The World Encyclopedia of Birds. London: Hermes House, 2014.

MLA (9th ed.) Zitazioa

Alderton, David. The World Encyclopedia of Birds. Hermes House, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.