Não informado. (1893). Alaska Fishery and Fur Seal Industries. U.S. Fish and Wildlife Service.
Cita Chicago Style (17a ed.)Não informado. Alaska Fishery and Fur Seal Industries. Washington: U.S. Fish and Wildlife Service, 1893.
Cita MLA (8a ed.)Não informado. Alaska Fishery and Fur Seal Industries. U.S. Fish and Wildlife Service, 1893.
Precaución: Estas citas no son 100% exactas.