Não informado. (1944). Science guide. American Museum of Natural History.
Lua i Stíl Chicago (17ú heag.)Não informado. Science Guide. New York: American Museum of Natural History, 1944.
Lua MLA (8ú heag.)Não informado. Science Guide. American Museum of Natural History, 1944.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.