Não informado. (2020). Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau. California State Mining Bureau.
Chicago-Zitierstil (17. Ausg.)Não informado. Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau. San Francisco, Calif: California State Mining Bureau, 2020.
MLA-Zitierstil (8. Ausg.)Não informado. Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau. California State Mining Bureau, 2020.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.