(1991). Vol. 55, № 3; Mineralogical magazine. 1991.
Lua i Stíl Chicago (17ú heag.)Vol. 55, № 3; Mineralogical Magazine. 1991, 1991.
Lua MLA (9ú heag.)Vol. 55, № 3; Mineralogical Magazine. 1991, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.