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Anderson, T.W., and Johnson, A.I., eds., 1986, Regional aquifer systems of the United States - Southwest alluvial basins of Arizona: Bethesda, Md., American Water Resources Association Monograph Series no. 7, 116 p.

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Wrucke, C.T., and Desborough, G.A., 1987, Geology and mineral commodities of the Middle Proterozoic Apache Group, Arizona [abs.]: Geological Society of America Abstracts with Programs, v. 19, no. 7, p. 899.

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Wilson, E.D., and Moore, R.T., 1959, Geologic map of Pinal County, Arizona: Arizona Bureau of Mines, 1 sheet, scale 1:375,000 [now available as Arizona Geological Survey Map M-3-9].

Wilson, E.D., 1941, Tungsten: Arizona Bureau of Mines Circular no. 10, 11 p.

Wilson, E.D., 1941, Tungsten deposits of Arizona: Arizona Bureau of Mines Bulletin no. 148, 54 p.

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