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APA-referensCampbell, W., Campbell, R. W., Dawe, N. K., McTaggart-Cowan, I., Campbell R Wayne Canadian Wildlife Service BC Environment, Cooper, J., . . . McNall, M. (1992). Birds of British Columbia, Volume 1. UBC Press.
Chicago-stil citatCampbell, Wayne, R. Wayne Campbell, Neil K. Dawe, Ian McTaggart-Cowan, Campbell R Wayne Canadian Wildlife Service BC Environment, John Cooper, Gary W. Kaiser, och Michael McNall. Birds of British Columbia, Volume 1. UBC Press, 1992.
MLA-referensCampbell, Wayne, et al. Birds of British Columbia, Volume 1. UBC Press, 1992.
Harvard-stil citatCampbell, W., Campbell, R. W., Dawe, N. K., McTaggart-Cowan, I., Campbell R Wayne Canadian Wildlife Service BC Environment, Cooper, J., . . . McNall, M. 1992. Birds of British Columbia, Volume 1. UBC Press.