Não informado. (1973). Journal of research of the United States Geological Survey. U.S. Geological Survey.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Research of the United States Geological Survey. Washington: U.S. Geological Survey, 1973.
Lua MLA (8ú heag.)Não informado. Journal of Research of the United States Geological Survey. U.S. Geological Survey, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.