Cita APA (7th ed.)

Canadian Wildlife Service, BC Environment. Wildlife Branch, Campbell, R. W., Rodriguez, I., Tyrrell, C., Chow, F. J., . . . Symons, M. H. (1997). The birds of British Columbia. UBC Press.

Cita Chicago (17th ed.)

Canadian Wildlife Service, et al. The Birds of British Columbia. Vancouver, British Columbia: UBC Press, 1997.

Cita MLA (9th ed.)

Canadian Wildlife Service, et al. The Birds of British Columbia. UBC Press, 1997.