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100   $a20200505d1997      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aDetection of underground voids in Ohio by use of geophysical methods /$fby Jens Munk and Rodney A. Sheets ; prepared in cooperation with the Ohio Department of Transportation and the U.S. Department of Transportation
210  1$aColumbus, Ohio :$cU.S. Geological Survey,$d1997.
215   $a1 online resource (vi, 28 pages) $cillustrations, maps
225 1 $aWater-resources investigations report ;$v97-4221
300   $a"Prepared in cooperation with the U.S. Department of Transportation, Federal Highway Administration"--Report documentation page.
320   $aIncludes bibliographical references (pages 26-28).
606   $aGeophysics$zOhio$xMethodology
606   $aGround penetrating radar$xResearch$zOhio
606   $aGeophysics$xMethodology$2fast
607   $aOhio$2fast
615  0$aGeophysics$xMethodology.
615  0$aGround penetrating radar$xResearch
615  7$aGeophysics$xMethodology.
700   $aMunk$b Jens$f1960-$01410692
702   $aSheets$b R. A.
712 02$aGeological Survey (U.S.),
712 02$aOhio.$bDepartment of Transportation.
712 02$aUnited States.$bFederal Highway Administration.
801  0$bOCLCE
801  1$bOCLCE
801  2$bCOP
801  2$bOCLCF
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910716607603321
996   $aDetection of underground voids in Ohio by use of geophysical methods$93499892
997   $aUNINA