APA (7e ed.) Bronvermelding

Não informado. (1941). Conservation bulletin of the Fish Wildlife Service, United States. U.S. Fish and Wildlife Service.

Chicago (17e ed.) Bronvermelding

Não informado. Conservation Bulletin of the Fish Wildlife Service, United States. Washington: U.S. Fish and Wildlife Service, 1941.

MLA (8e ed.) Bronvermelding

Não informado. Conservation Bulletin of the Fish Wildlife Service, United States. U.S. Fish and Wildlife Service, 1941.

Let op: Deze citaties zijn niet altijd 100% accuraat.