Richard, S.M., Reynolds, S.J., Spencer, J.E., and Pearthree, P.A., comps., 2000, Geologic Map of Arizona: Arizona Geological Survey Map M-35, 1 sheet, scale 1:1,000,000.
Earman, Sam, McPherson, B.J.O.L., Phillips, F.M., Ralser, S., and Herrin, J.M., 2003, An investigation of the properties of the San Bernardino groundwater basin, Arizona and Sonora, Mexico: A final report of work performed for the United States Fish and Wildlife Service: Socorro, New Mexico Institute of Mining and Technology, Hydrology Program, 283 p.
Earman, S., Phillips, F.M., McPherson B.J.,, 1999, preliminary results of hydrogeochemical and isotopic investigation of groundwater flow in the San Bernardino Valley, Arizona and Sorora [abs.]: New Mexico Geology, v. 21, no. 2, May 1999, p. 40.
Earman, Sam, McPherson, B.J.O.L., Phillips, F.M., Ralser, S., and Herrin, J.M., 2002, Hydrogeologic framework and groundwater characteristics, San Bernardino Valley, Arizona and Sonora [abs.]: Geological Society of America Abstracts with Programs, v. 34, p. 393.
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.
Catlin, C.N., 1926, Character of the ground-water resources of Arizona: Tucson, University of Arizona, College of Agriculture, Agricultural Experiment Station, Bulletin no. 114, p. 173-293.
Smith, H.V., Caster, A.B., Fuller, W.H., Breazeale, E.L., and Draper, George, 1949, The chemical composition of representative Arizona waters: Tucson, University of Arizona, College of Agriculture, Agricultural Experiment Station, Bulletin 225, 76 p.
Soil Conservation Service, Economic Research Service, Forest Service, and Arizona Water Commission, 1977, Santa Cruz-San Pedro River basin, Arizona: Resource inventory: U.S. Department of Agriculture Soil Conservation Service,  p.
Davis, L.A., Maddock, Thomas, III, and MacNish, Robert, 1997, Ground-water flow and interaction with surface water in San Bernardino Valley, Cochise County, Arizona, and Sonora Mexico: Tucson, University of Arizona, Department of Hydrology and Water Resources HWR report no. 97-030, 169 p.
Harshbarger and Associates, 1979, Overview report of groundwater basins along international boundary, Arizona, United States and Sonora, Mexico: Prepared for International Boundary and Water Commission, United States Section: Tucson, Ariz., Harshbarger and Associates, Inc., Preliminary Report PR-236-79-1, March 15, 1979, 169 p.