Alexis, C.O., 1939, Geology of the Lead Mountain area, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 60 p.
Alexis, C.O.
Tucson, University of Arizona, M.S. thesis, 60 p.
Mineral District, Areal, Copper, Lead, Zinc, Gold, Silver, Molybdenum,