Não informado. (1941). Conservation bulletin of the Fish Wildlife Service, United States. U.S. Fish and Wildlife Service.
Style de citation Chicago (17e éd.)Não informado. Conservation Bulletin of the Fish Wildlife Service, United States. Washington: U.S. Fish and Wildlife Service, 1941.
Style de citation MLA (8e éd.)Não informado. Conservation Bulletin of the Fish Wildlife Service, United States. U.S. Fish and Wildlife Service, 1941.
Attention : ces citations peuvent ne pas être correctes à 100%.