Dokumentuaren aipamena

APA (7th ed.) Zitazioa
Henderson, C. L. (2010). Birds of Costa Rica: A field guide. University of Texas Press.
Chicago Style (17th ed.) Zitazioa
Henderson, Carrol L. Birds of Costa Rica: A Field Guide. Austin: University of Texas Press, 2010.
MLA (9th ed.) Zitazioa
Henderson, Carrol L. Birds of Costa Rica: A Field Guide. University of Texas Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.