TY - RPRT TI - Geology and ground-water resources of the Salt River Valley area, Maricopa and Pinal counties, Arizona AU - Harris R. McDonald AU - Henry Newton Wolcott AU - John David Hem PY - 1947 DO - 10.3133/2239 UR - https://pubs.usgs.gov/publication/2239 ID - 2239 ER -