Não informado. (1941). Fishery Bulletin of the Fish and Wildlife Service. U.S. Fish and Wildlife Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Fishery Bulletin of the Fish and Wildlife Service. Washington: U.S. Fish and Wildlife Service, 1941.
Lua MLA (8ú heag.)Não informado. Fishery Bulletin of the Fish and Wildlife Service. U.S. Fish and Wildlife Service, 1941.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.