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Kennard, Michele, Johnson, A.E., and Perry, T.W., 1988, Preliminary report on the hydrology of Cienega Creek Groundwater Basin: Arizona Department of Water Resources, Division of Hydrology, Special Studies, 11 p.

E.L. Montgomery and Associates, 1985, Water adequacy report: Stage one development, Empirita Ranch area, Pima County, Arizona: Arizona Department of Water Resources, contractor report, 48 p.

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Turner, S.F., and others, 1943, Ground-water resources of the Santa Cruz Basin, Arizona: U.S. Geological Survey Open-File Report [unnumbered], Tucson, Ariz., May 14, 1943, [89] p., 3 sheets, scales 1:23,000, 1:200,000, and 1:500,000.

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

Foster, K.E., 1978, Management alternatives for Santa Cruz basin groundwater, in Verma, T.R., ed., Hydrology and water resources in Arizona and the Southwest, V. 8: American Water Resources Association, Arizona Section, and Arizona Academy of Science, Hydrology Section, Annual Meeting, Flagstaff, Ariz., 1978, Proceedings, p. 202-208.

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.