Mining methods and costs at the New Cornelia Branch, Phelps Dodge Corporation, Ajo, Ariz.
Ingham, G.R., and Barr, A.T., 1932, Mining methods and costs at the New Cornelia Branch, Phelps Dodge Corporation, Ajo, Ariz.: U.S. Bureau of Mines Information Circular I.C. 6666, 18 p.
Authors
Ingham, G.R., and Barr, A.T.
Publication Date
1932
Citation
U.S. Bureau of Mines Information Circular I.C. 6666, 18 p.
