Não informado. (1949). Special Scientific Report. U.S. Fish and Wildlife Service.
Cita Chicago Style (17a ed.)Não informado. Special Scientific Report. Seattle, Wash: U.S. Fish and Wildlife Service, 1949.
Cita MLA (8a ed.)Não informado. Special Scientific Report. U.S. Fish and Wildlife Service, 1949.
Precaución: Estas citas no son 100% exactas.