APA (7th ed.) Zitazioa

Canada. Environment Canada, ebrary, Inc, & Campbell, R. W. (1990). The birds of British Columbia. UBC Press.

Chicago Style (17th ed.) Zitazioa

Canada. Environment Canada, Inc ebrary, eta R. Wayne Campbell. The Birds of British Columbia. Vancouver: UBC Press, 1990.

MLA (9th ed.) Zitazioa

Canada. Environment Canada, et al. The Birds of British Columbia. UBC Press, 1990.