Não informado. (1960). List of Bureau of Mines publications and articles with subject and author index. U.S. Department of the Interior, Bureau of Mines.
Lua i Stíl Chicago (17ú heag.)Não informado. List of Bureau of Mines Publications and Articles with Subject and Author Index. Washington: U.S. Department of the Interior, Bureau of Mines, 1960.
Lua MLA (8ú heag.)Não informado. List of Bureau of Mines Publications and Articles with Subject and Author Index. U.S. Department of the Interior, Bureau of Mines, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.