Arizona Department of Water Resources, 1990, Preliminary hydrographic survey report for the San Pedro River watershed, Volume 1: General assessment, In re The general adjudication of the Gila River system and source: [Phoenix], Arizona Department of Water Resources,  p.
San Manuel area
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.
Brown, S.G., and Aldridge, B.N., 1973, Streamflow gains and losses and ground-water recharge in the San Pedro River Basin, Arizona: U.S. Geological Survey Open-File Report [unnumbered], 40 p., 2 sheets, 1:250,000.
Halpenny, L.C., 1987, Groundwater and surface water interconnection in Arizona: Water Development Corporation, [variously paged].
Davidson, E.S., and White, N.D., 1963, San Pedro River Valley, in White, N.D., Stulik, R.S., Morse, E.K., and others, Annual report on ground water in Arizona, Spring 1962 to Spring 1963: Arizona State Land Department Water-Resources Report no. 15, p. 68-76.
Heindl, L.A., 1952, Lower San Pedro basin, in Halpenny and others, Ground water in the Gila River basin and adjacent areas, Arizona-A Summary: U.S. Geological Survey Open-File Report [unnumbered], p. 87-99.
Jones, S.C., 1980, Maps showing ground-water conditions in the Lower San Pedro Basin area, Pinal, Cochise, Pima, and Graham Counties, Arizona-1979: U.S. Geological Survey Water-Resources Investigations Open-File Report 80-0954, 1 sheet, scale 1:32,000
Montgomery, E.L., and Harshbarger, J.W., 1992, Arizona hydrogeology and water supply: Applied Hydrogeology, v. 1, no. 1, p. 25-37.
Wolff, R.C., 1982, Physical properties of rocks- Porosity, permeability, distribution coefficients, and dispersivity: U.S. Geological Survey Open-File Report 82-166, 118p.