Não informado. (2002). California Journal of Mines and Geology. State of California, Department of Natural Resources, Division of Mines.
Cita Chicago Style (17a ed.)Não informado. California Journal of Mines and Geology. San Francisco, Calif: State of California, Department of Natural Resources, Division of Mines, 2002.
Cita MLA (8a ed.)Não informado. California Journal of Mines and Geology. State of California, Department of Natural Resources, Division of Mines, 2002.
Precaución: Estas citas no son 100% exactas.