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100   $a20101115d1982      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 12$aA three-dimensional ground-water-flow model modified to reduce computer-memory requirements and better simulate confining-bed and aquifer pinchouts /$fby P. Patrick Leahy
210  1$aTrenton, New Jersey :$cU.S. Geological Survey,$d1982.
215   $a1 online resource (iii, 59 pages) $cillustrations, maps
225 1 $aWater-resources investigations ;$v82-4023
320   $aIncludes bibliographical references (pages 12-13).
606   $aAquifers$xSimulation methods$xData processing
606   $aGroundwater flow$xComputer simulation
606   $aAquifers$xComputer simulation$2fast
606   $aGroundwater flow$xComputer simulation$2fast
615  0$aAquifers$xSimulation methods$xData processing.
615  0$aGroundwater flow$xComputer simulation.
615  7$aAquifers$xComputer simulation.
615  7$aGroundwater flow$xComputer simulation.
700   $aLeahy$b P. Patrick$01384508
712 02$aGeological Survey (U.S.),
801  0$bOCLCE
801  1$bOCLCE
801  2$bOCLCQ
801  2$bOCLCO
801  2$bOCLCQ
801  2$bCOP
801  2$bGPO
906   $aBOOK
912   $a9910715123403321
996   $aA three-dimensional ground-water-flow model modified to reduce computer-memory requirements and better simulate confining-bed and aquifer pinchouts$93542503
997   $aUNINA