Não informado. (1940). Special Scientific Report. U.S. Fish and Wildlife Service.
Lua i Stíl Chicago (17ú heag.)Não informado. Special Scientific Report. Seattle, Wash: U.S. Fish and Wildlife Service, 1940.
Lua MLA (8ú heag.)Não informado. Special Scientific Report. U.S. Fish and Wildlife Service, 1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.