01793oam 2200421Ia 450 991070095360332120110912153300.0(CKB)5470000002413491(OCoLC)751992606(EXLCZ)99547000000241349120110912d1997 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierGeneral distribution of geologic materials in the San Francisco Bay Region, California, a digital map database[electronic resource] based on the work of E.E. Brabb (1980), S.E. Ellen and C.M. Wentworth (1995), and E.J. Helley and K.R. Lajoie (1979) /digitally compiled by Carl M. Wentworth[Menlo Park, Calif.] :U.S. Dept. of the Interior, U.S. Geological Survey,1997.1 online (26 pages) mapOpen-file report ;97-744Title from title screen (viewed on Sept. 12, 2011).Includes bibliographical references (pages 17-18).General distribution of geologic materials in the San Francisco Bay Region, California, a digital map database Geological mappingCaliforniaSan Francisco Bay AreaDatabasesGeologyCaliforniaSan Francisco Bay AreaDatabasesDigital mappingDatabasesGeological mappingGeologyDigital mappingWentworth Carl M1393425Geological Survey (U.S.)GPOGPOGPOBOOK9910700953603321General distribution of geologic materials in the San Francisco Bay Region, California, a digital map database3510758UNINA