The nature and possible significance of the Batamote copper-bismuth-silver anomaly, Pima County, Arizona
Huston, D.L., and Theobald, P.K., 1990, The nature and possible significance of the Batamote copper-bismuth-silver anomaly, Pima County, Arizona: U.S. Geological Survey Bulletin 1907, 19 p., 2 sheets, scale 1:62,500.