Não informado. (1940). Wildlife research bulletin. U.S. Fish and Wildlife Service.
Cita Chicago Style (17a ed.)Não informado. Wildlife Research Bulletin. Washington: U.S. Fish and Wildlife Service, 1940.
Cita MLA (8a ed.)Não informado. Wildlife Research Bulletin. U.S. Fish and Wildlife Service, 1940.
Precaución: Estas citas no son 100% exactas.