Não informado. (2020). Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the Division of Mines. California Division of Mines.
Lua i Stíl Chicago (17ú heag.)Não informado. Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the Division of Mines. San Francisco, Calif: California Division of Mines, 2020.
Lua MLA (8ú heag.)Não informado. Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the Division of Mines. California Division of Mines, 2020.
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