Não informado. (2020). Report of the State Mineralogist. California Division of Mines.
Cita Chicago Style (17a ed.)Não informado. Report of the State Mineralogist. San Francisco, Calif: California Division of Mines, 2020.
Cita MLA (8a ed.)Não informado. Report of the State Mineralogist. California Division of Mines, 2020.
Precaución: Estas citas no son 100% exactas.