(1994). The importance of wildlife to Canadians: The economic significance of wildlife-related recreational activities in 1991. Environment Canada, Canadian Wildlife Service.
Chicago-Zitierstil (17. Ausg.)The Importance of Wildlife to Canadians: The Economic Significance of Wildlife-related Recreational Activities in 1991. Ottawa: Environment Canada, Canadian Wildlife Service, 1994.
MLA-Zitierstil (9. Ausg.)The Importance of Wildlife to Canadians: The Economic Significance of Wildlife-related Recreational Activities in 1991. Environment Canada, Canadian Wildlife Service, 1994.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.