Andrews, D.A., 1937, Ground water in Avra-Altar Valley, Arizona: U.S. Geological Survey Water-Supply Paper 796-E, p 163-180.
Andrews, D.A.
U.S. Geological Survey Water-Supply Paper 796-E, p 163-180.
Water Resources, Groundwater, Hydrology, Hydrogeology, Subsurface, Geochemical Survey,