01861oam 2200553 450 991071169780332120181128112119.0(CKB)5470000002485079(OCoLC)953209126(OCoLC)995470000002485079(EXLCZ)99547000000248507920160707d1976 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierStatus of ground-water modeling in the U.S. Geological Survey /by Charles A. Appel and John D. BredehoeftWashington, D.C. :United States Department of the Interior, Geological Survey,1976.1 online resource (iii, 9 pages)Geological Survey circular ;737Includes bibliographical references (pages 6-9).GroundwaterMathematical modelsGroundwaterData processingHydrologyResearchUnited StatesGroundwaterData processingfastGroundwaterMathematical modelsfastHydrologyResearchfastUnited StatesfastGroundwaterMathematical models.GroundwaterData processing.HydrologyResearchGroundwaterData processing.GroundwaterMathematical models.HydrologyResearch.Appel Charles A.1388456Bredehoeft J. D(John D.),Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCOOCLCAGPOBOOK9910711697803321Status of ground-water modeling in the U.S. Geological Survey3476085UNINA