Williams, S.A., 1962, The mineralogy of the Mildren and Steppe mining districts, Pima County, Arizona: Tucson, University of Arizona, Ph.D. dissertation, 145 p.
Williams, S.A.
Tucson, University of Arizona, Ph.D. dissertation, 145 p.
Mineral District, Copper, Lead, Gold, Silver, Supergene Enrichment, Minerals, Mineralogy, Mineralization, Geochemistry,
