Não informado. (1893). Alaska Fishery and Fur Seal Industries. U.S. Fish and Wildlife Service.
Citace podle Chicago (17th ed.)Não informado. Alaska Fishery and Fur Seal Industries. Washington: U.S. Fish and Wildlife Service, 1893.
Citace podle MLA (8th ed.)Não informado. Alaska Fishery and Fur Seal Industries. U.S. Fish and Wildlife Service, 1893.
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