LEADER 01274nam 2200361Ia 450 001 9910698742503321 005 20090417132824.0 035 $a(CKB)5470000002396431 035 $a(OCoLC)318649510 035 $a(EXLCZ)995470000002396431 100 $a20090417d1967 ua 0 101 0 $aeng 135 $aurmn||||a|||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aReports and maps of the Geological Survey released only in the open files, 1966$b[electronic resource] /$fby Betsy A. Weld, Margaret S. Griffin, and George W. Brett 210 1$aWashington :$cU.S. Dept. of the Interior, Geological Survey,$d1967. 215 $a14 pages $cDJVU, image file 225 1 $aGeological Survey circular ;$v528 300 $aTitle from title screen (viewed Apr. 17, 2009). 300 $aIncludes index. 608 $aBibliographies.$2lcgft 700 $aWeld$b Betsy A$01388375 701 $aGriffin$b Margaret S$01388376 701 $aBrett$b George W$01388377 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910698742503321 996 $aReports and maps of the Geological Survey released only in the open files, 1966$93465534 997 $aUNINA