Não informado. (1965). Clay Minerals. Mineralogical Society of Great Britain.
Lua i Stíl Chicago (17ú heag.)Não informado. Clay Minerals. London: Mineralogical Society of Great Britain, 1965.
Lua MLA (8ú heag.)Não informado. Clay Minerals. Mineralogical Society of Great Britain, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.