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100   $a20140711d1941      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aSuperposition in the interpretation of two-layer earth-resistivity curves /$fby Irwin Roman
210  1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1941.
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (ii, 18 pages, 2 pages of plates) $cillustrations
225 1 $aBulletin / United States Department of the Interior, Geological Survey ;$v927-A
300   $aTitle from title screen (viewed July 10, 2014).
320   $aIncludes bibliographical references.
517 3 $aInterpretation of two-layer earth-resistivity curves
517 1 $aContributions to geophysics, 1941
606   $aEarth resistance (Geophysics)
606   $aGeology
606   $aEarth conductivity, Electric
606   $aEarth resistance (Geophysics)$2fast
606   $aGeology$2fast
615  0$aEarth resistance (Geophysics)
615  0$aGeology.
615  4$aEarth conductivity, Electric.
615  7$aEarth resistance (Geophysics)
615  7$aGeology.
700   $aRoman$b Irwin$f1893-$01387032
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCA
801  2$bOCLCF
801  2$bTRAAL
801  2$bOCLCO
801  2$bGPO
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910704140803321
996   $aSuperposition in the interpretation of two-layer earth-resistivity curves$93436479
997   $aUNINA