Não informado. (1954). Gems and minerals. California Federation of Mineralogical Societies and Other Mineralogical.
Style de citation Chicago (17e éd.)Não informado. Gems and Minerals. Mentone, Calif: California Federation of Mineralogical Societies and Other Mineralogical, 1954.
Style de citation MLA (8e éd.)Não informado. Gems and Minerals. California Federation of Mineralogical Societies and Other Mineralogical, 1954.
Attention : ces citations peuvent ne pas être correctes à 100%.