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035   $a(CKB)5470000002490133
035   $a(OCoLC)971981230
035   $a(EXLCZ)995470000002490133
100   $a20170209d2011      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aComputer programs for forward and inverse modeling of acoustic and electromagnetic data /$fby Karl J. Ellefsen
210  1$aReston, Virginia :$cU.S. Department of the Interior, Geological Survey,$d2011.
215   $a1 online resource (iii, 11 pages) $cillustrations (some color)
225 1 $aOpen-file report ;$v2011-1124
320   $aIncludes bibliographical references (page 11).
606   $aAcoustic imaging$xComputer programs
606   $aElectromagnetic fields$xMeasurement$xComputer programs
606   $aGeophysical instruments$xComputer programs
606   $aApplication software$xDevelopment$xComputer programs$xAnalysis
615  0$aAcoustic imaging$xComputer programs.
615  0$aElectromagnetic fields$xMeasurement$xComputer programs.
615  0$aGeophysical instruments$xComputer programs.
615  0$aApplication software$xDevelopment$xComputer programs$xAnalysis.
700   $aEllefsen$b Karl$01380912
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bGPO
906   $aBOOK
912   $a9910712197403321
996   $aComputer programs for forward and inverse modeling of acoustic and electromagnetic data$93434653
997   $aUNINA