Não informado. (1954). Gems and minerals. California Federation of Mineralogical Societies and Other Mineralogical.
Lua i Stíl Chicago (17ú heag.)Não informado. Gems and Minerals. Mentone, Calif: California Federation of Mineralogical Societies and Other Mineralogical, 1954.
Lua MLA (8ú heag.)Não informado. Gems and Minerals. California Federation of Mineralogical Societies and Other Mineralogical, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.