Canadian Wildlife Service, BC Environment. Wildlife Branch, ebrary, Inc, & Campbell, R. W. (2001). Passerines: Wood-warblers through old world sparrows (New ed.). UBC Press.
Chicago Style (17. basım) AtıfCanadian Wildlife Service, BC Environment. Wildlife Branch, Inc ebrary, ve R. Wayne Campbell. Passerines: Wood-warblers Through Old World Sparrows. New ed. Vancouver [B.C.]: UBC Press, 2001.
MLA (9th ed.) AtıfCanadian Wildlife Service, et al. Passerines: Wood-warblers Through Old World Sparrows. New ed. UBC Press, 2001.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..