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Herbert, R.A., 1977, Effect of illuviated deposits on infiltration rates and denitrification during sewage effluent recharge, in White, L.M., ed., Hydrology and water resources in Arizona and the Southwest, V. 7: American Water Resources Association, Arizona Section, and Arizona Academy of Science, Hydrology Section, Annual Meeting, Las Vegas, Nev., 1977, Proceedings, p. 183-190.

Rillito Creek Hydrological Research Committee, 1959, Capturing additional water in the Tucson area: University of Arizona and U.S. Geological Survey Open-File Report, 57 p., 2 sheets, scales 1:95,000 and 1:126,720.

Pima Association of Governments, 1994, Water quality: State of the region report: Tucson, Ariz., [177] p.

Tellman, Barbara, Glass, Clint, Wallace, John, and Fuller, J.E., 2000, An overview of Pima County's watersheds and watercourses: Pima County, Ariz., Sonoran Desert Conservation Plan Report, 215 p.

Davis, G.H., 1987, A shear-zone model for the structural evolution of metamorphic core complexes in southeastern Arizona, in Coward, M.P., Dewey, J.F., and Hancock, P.L., eds., Continental extensional tectonics: Geological Society of London Special Publication no. 28, p. 247-266.

Grover, N.C., 1939, Surface water supply of the United States, 1938, Part IX. Colorado River Basin: U.S. Geological Survey Water-Supply Paper 859, 285 p.

Murphy, B.A., and Hedley, J.D., 1984, Maps showing groundwater conditions in the upper Santa Cruz Basin area, Pima, Santa Cruz, Pinal, and Cochise Counties, Arizona - 1982: Arizona Department of Water Resources Hydrologic Map Series Report no. 11, 3 sheets, scale 1:125,000.