Mineralogical Society of America. (1967). American Mineralogist,vol.52(7-12).
Dyfyniad Arddull ChicagoMineralogical Society of America. American Mineralogist,vol.52(7-12). Mineralogical Society of America, 1967.
Dyfyniad MLAMineralogical Society of America. American Mineralogist,vol.52(7-12). 1967.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.