Não informado. (1893). Alaska Fishery and Fur Seal Industries. U.S. Fish and Wildlife Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Alaska Fishery and Fur Seal Industries. Washington: U.S. Fish and Wildlife Service, 1893.
Lua MLA (8ú heag.)Não informado. Alaska Fishery and Fur Seal Industries. U.S. Fish and Wildlife Service, 1893.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.