Tolman, C.F., Jr., 1909, The southern Arizona copper fields [Part I]: Mining and Scientific Press, v. 99, no. 11, p. 356-360.
Tolman, C.F., Jr.
Mining and Scientific Press, v. 99, no. 11, p. 356-360.
Mineral District, Porphyry Copper, Mineralization, Stratigraphy, Mining Engineering,
