LEADER 01529nam 2200385Ia 450 001 9910698722403321 005 20090424092451.0 035 $a(CKB)5470000002396634 035 $a(OCoLC)319155542 035 $a(EXLCZ)995470000002396634 100 $a20090424d1983 ua 0 101 0 $aeng 135 $aurmn||||a|||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aComputer program modifications of Open-file report 82-1065$b[electronic resource] $ea comprehensive system for interpreting seismic-refraction and arrival-time data using interactive computer methods /$fby Hans D. Ackermann, Leroy W. Pankratz, Danny A. Dansereau 210 1$a[Reston, Va.] :$cU.S. Dept. of the Interior, Geological Survey,$d1983. 215 $a2 pages ;$d28 cm 225 1 $aOpen-file report ;$v83-604 300 $aTitle from title screen (viewed Apr. 24, 2009). 320 $aIncludes bibliographical references (page 2). 517 $aComputer program modifications of Open-file report 82-1065 606 $aSeismic refraction method$xComputer programs 615 0$aSeismic refraction method$xComputer programs. 700 $aAckermann$b Hans D$01398711 701 $aPankratz$b Leroy W$01398712 701 $aDansereau$b Danny$01398713 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910698722403321 996 $aComputer program modifications of Open-file report 82-1065$93462499 997 $aUNINA