Farnham, L.L., Stewart, L.A., and DeLong, C.W., 1961, Manganese deposits of eastern Arizona: U.S. Bureau of Mines Information Circular I.C. 7990, 178 p.
Farnham, L.L., Stewart, L.A., and DeLong, C.W., 1961, Manganese deposits of eastern Arizona: U.S. Bureau of Mines Information Circular I.C. 7990, 178 p.
Mineral District, Manganese, Locale, Mineralization, Production, History,