Não informado. (2020). Monthly Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau. California State Mining Bureau.
Citação do estilo Chicago (17ª ed.)Não informado. Monthly Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau. Sacramento, Calif: California State Mining Bureau, 2020.
Citação MLA (8ª ed.)Não informado. Monthly Chapter of Report ... of the State Mineralogist Covering Mining in California and the Activities of the State Mining Bureau. California State Mining Bureau, 2020.
警告：這些引文格式不一定是100％准確.