LEADER 02036oam 2200529 450 001 9910713681603321 005 20200617101415.0 035 $a(CKB)5470000002502855 035 $a(OCoLC)966434854 035 $a(OCoLC)995470000002502855 035 $a(EXLCZ)995470000002502855 100 $a20161219d1991 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aPlan of study for the regional aquifer-system analysis of the Appalachian Valley and Ridge, Piedmont, and Blue Ridge physiographic provinces of the eastern and southeastern United States, with a description of study-area geology and hydrogeology /$fby Lindsay A. Swain [and three others] 210 1$aRichmond, Virginia :$cU.S. Geological Survey,$d1991. 215 $a1 online resource (v, 44 pages) $cillustrations, maps 225 1 $aWater-resources investigations report ;$v91-4066 320 $aIncludes bibliographical references (pages 39-44). 606 $aGroundwater$zAppalachian Region 606 $aGroundwater$xResearch 606 $aAquifers$zEast (U.S.) 606 $aAquifers$zSouthern States 606 $aGroundwater$2fast 606 $aGroundwater$xResearch$2fast 607 $aAppalachian Region$2fast 615 0$aGroundwater 615 0$aGroundwater$xResearch. 615 0$aAquifers 615 0$aAquifers 615 7$aGroundwater. 615 7$aGroundwater$xResearch. 700 $aSwain$b Lindsay A.$01400908 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910713681603321 996 $aPlan of study for the regional aquifer-system analysis of the Appalachian Valley and Ridge, Piedmont, and Blue Ridge physiographic provinces of the eastern and southeastern United States, with a description of study-area geology and hydrogeology$93468624 997 $aUNINA