LEADER 01593oam 2200445 a 450 001 9910697822603321 005 20090511111526.0 035 $a(CKB)5470000002392760 035 $a(OCoLC)288440244 035 $a(EXLCZ)995470000002392760 100 $a20081217d2008 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aGeological, geochemical, and geophysical studies by the U.S. Geological Survey in Big Bend National Park, Texas$b[electronic resource] /$fedited by J.E. Gray and W.R. Page 210 1$aReston, Va. :$cU.S. Geological Survey,$d2008. 215 $avi, 93 pages $cdigital, PDF file 225 1 $aCircular ;$v1327 300 $aTitle from title screen (viewed on December 4, 2008). 320 $aIncludes bibliographical references. 606 $aGeophysics$zTexas$zBig Bend National Park 606 $aGeology$zTexas$zBig Bend National Park 606 $aIgneous rocks$zTexas$zBig Bend National Park 606 $aWater quality$zTexas$zBig Bend National Park 615 0$aGeophysics 615 0$aGeology 615 0$aIgneous rocks 615 0$aWater quality 701 $aGray$b John E.$f1956-$01401640 701 $aPage$b William R$0247920 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aBOOK 912 $a9910697822603321 996 $aGeological, geochemical, and geophysical studies by the U.S. Geological Survey in Big Bend National Park, Texas$93530867 997 $aUNINA