Não informado. (1966). Lithology and Mineral Resources. Consultants Bureau.
Lua i Stíl Chicago (17ú heag.)Não informado. Lithology and Mineral Resources. New York: Consultants Bureau, 1966.
Lua MLA (8ú heag.)Não informado. Lithology and Mineral Resources. Consultants Bureau, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.