Whitcomb, H.A., 1948, Geology of the Morgan mine area, Twin Buttes, Arizona: Tucson, University of Arizona, M.S. thesis, 83 p.
Whitcomb, H.A.
Tucson, University of Arizona, M.S. thesis, 83 p.
Mineral District, Porphyry Copper, Silver, Skarn, Mineralization, Areal, Structure, Stratigraphy,