01992oam 2200505 450 991071660760332120210728114716.0(CKB)5470000002524094(OCoLC)1153329249(OCoLC)622223024(OCoLC)667925430(OCoLC)681186423(OCoLC)984765647(OCoLC)995470000002524094(EXLCZ)99547000000252409420200505d1997 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierDetection of underground voids in Ohio by use of geophysical methods /by Jens Munk and Rodney A. Sheets ; prepared in cooperation with the Ohio Department of Transportation and the U.S. Department of TransportationColumbus, Ohio :U.S. Geological Survey,1997.1 online resource (vi, 28 pages) illustrations, mapsWater-resources investigations report ;97-4221"Prepared in cooperation with the U.S. Department of Transportation, Federal Highway Administration"--Report documentation page.Includes bibliographical references (pages 26-28).GeophysicsOhioMethodologyGround penetrating radarResearchOhioGeophysicsMethodologyfastOhiofastGeophysicsMethodology.Ground penetrating radarResearchGeophysicsMethodology.Munk Jens1960-1410692Sheets R. A.Geological Survey (U.S.),Ohio.Department of Transportation.United States.Federal Highway Administration.OCLCEOCLCECOPOCLCFOCLCQGPOBOOK9910716607603321Detection of underground voids in Ohio by use of geophysical methods3499892UNINA