Cushman, R.L., and Halpenny, L.C., 1955, Effect of western drought on the water resources of Safford Valley, Arizona, 1940-1952: American Geophysical Union Transactions, v. 36, no. 1, p. 87-94.
San Simon Valley(GM)
Rauzi, S.L., 2002, Arizona has salt!: Arizona Geological Survey, Circular 30, 36 p.
Hawley, J.W., Hibbs, B.J., Kennedy, J.F., Creel, B.J., Remmenga, M.D., Johnson, Molly, Lee, M.M., and Dinterman, Phil, 2000, Trans-international boundary aquifers in southwestern New Mexico: New Mexico Water Resources Institute, Technical Completion Report, Interagency contract number X-996350-01-3, 126 p.
Welch, A.H., Lico, M.S., and Hughes, J.L., 1988, Arsenic in ground water of the Western United States: Ground Water (Journal of Association of Ground Water Scientists and Engineers), v. 26, no. 3, p. 333-347.
White, N.D., and Hardt, W.F., 1965, Electrical-analog analysis of hydrologic data for San Simon Basin Cochise and Graham Counties, Arizona: U.S. Geological Survey Water-Supply Paper 1809-R, p. R1-R30, 2 sheets.
Reetz, G.R., 1969, A hydrologic appraisal of Arizona's ground water as affected by the state code: Tucson, University of Arizona, M.S. thesis, 108 p.
Schumann, H.H., Laney, R.L., and Cripe, L.S., 1986, Land subsidence and earth fissures caused by ground-water depletion in southern Arizona, in Anderson, T.W. and Johnson, A.I., eds., Regional aquifer systems of the United States - Southwest alluvial basins of Arizona: American Water Resources Association Monograph Series no. 7, p. 81-91.
Tadayon, Saeid, 2005, Water withdrawals for irrigation, municipal, mining, thermoelectric-power, and drainage uses in Arizona outside of active management areas, 1991-2000: U. S. Geological Survey Scientific Investigations Report 2004-5293, 38p.
Harris, R.C., 2000, Tritium as a tracer of groundwater sources and movement in the Safford Basin, Graham County, Arizona: Arizona Geological Survey Open-File Report 00-09, 56 p.