Conrad Hill Copper and Gold Deposit Davidson County, N.C. T. J. Ballard Published: 1948 Total Pages: 60 Get eBook
Transactions of the American Institute of Mining Engineers American Institute of Mining Engineers Published: 1907 Total Pages: 724 Get eBook
Transactions of the American Institute of Mining, Metallurgical and Petroleum Engineers American Institute of Mining, Metallurgical, and Petroleum Engineers Published: 1901 Total Pages: 1238 Get eBook
General and Analytical Index [to] Publications of the American Institute of Mining and Metallurgical Engineers American Institute of Mining, Metallurgical, and Petroleum Engineers Published: 1907 Total Pages: 724 Get eBook
Cid Mining District of Davidson County, North Carolina John Simcox Holmes Published: 1910 Total Pages: 336 Get eBook
