Não informado. (2002). California Journal of Mines and Geology. State of California, Department of Natural Resources, Division of Mines.
Chicago-Zitierstil (17. Ausg.)Não informado. California Journal of Mines and Geology. San Francisco, Calif: State of California, Department of Natural Resources, Division of Mines, 2002.
MLA-Zitierstil (8. Ausg.)Não informado. California Journal of Mines and Geology. State of California, Department of Natural Resources, Division of Mines, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.