Não informado. (1919). Natural History. American Museum of Natural History.
Lua i Stíl Chicago (17ú heag.)Não informado. Natural History. New York: American Museum of Natural History, 1919.
Lua MLA (8ú heag.)Não informado. Natural History. American Museum of Natural History, 1919.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.