Reports and Maps of the Geological Survey Released Only in the Open Files, 1970 Betsy A. Weld Published: 1971 Total Pages: 418 Get eBook
New Publications of the Geological Survey Geological Survey (U.S.) Published: 1989 Total Pages: 836 Get eBook
New Publications of the U.S. Geological Survey Geological Survey (U.S.) Published: 1990 Total Pages: 380 Get eBook
Central Arizona Project, Geology and Ground-water Resources Report, Maricopa and Pinal Counties, Arizona, October 1977 United States. Bureau of Reclamation. Lower Colorado Region Published: 1977 Total Pages: 304 Get eBook
Geological Survey Professional Paper Geological Survey (U.S.) Published: 1969 Total Pages: 662 Get eBook