United States. Bureau of Mines. (1938). Mineral industries survey of United States: California, Calaveras County, Mother Lode district (south), mines of southern Mother Lode region, pt. 1, Calaveras County. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Mines. Mineral Industries Survey of United States: California, Calaveras County, Mother Lode District (south), Mines of Southern Mother Lode Region, Pt. 1, Calaveras County. [Washington]: [s.n.], 1938.
MLA (8th ed.) CitationUnited States. Bureau of Mines. Mineral Industries Survey of United States: California, Calaveras County, Mother Lode District (south), Mines of Southern Mother Lode Region, Pt. 1, Calaveras County. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.