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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)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.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.