Não informado. (2001). Special studies. Utah Geological and Mineralogical Survey.
Chicagoスタイル(17版)引用形式Não informado. Special Studies. Salt Lake City, Utah: Utah Geological and Mineralogical Survey, 2001.
MLA(8版)引用形式Não informado. Special Studies. Utah Geological and Mineralogical Survey, 2001.
警告: この引用は必ずしも正確ではありません.