Não informado. (2002). California Journal of Mines and Geology. State of California, Department of Natural Resources, Division of Mines.
Chicagoスタイル(17版)引用形式Não informado. California Journal of Mines and Geology. San Francisco, Calif: State of California, Department of Natural Resources, Division of Mines, 2002.
MLA(8版)引用形式Não informado. California Journal of Mines and Geology. State of California, Department of Natural Resources, Division of Mines, 2002.
警告: この引用は必ずしも正確ではありません.