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100   $a20101107d1997      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aUse of isotopic data to evaluate recharge and geologic controls on the movement of ground water in Las Posas Valley, Ventura County, California /$fby John A. Izbicki and Peter Martin ; prepared in cooperation with the Calleguas Municipal Water District
210  1$aSacramento, California :$cU.S. Geological Survey,$d1997.
215   $a1 online resource (iv, 12 pages) $cillustrations, maps
225 1 $aWater-resources investigations report ;$v97-4035
225 1 $aRegional aquifer-system analysis
320   $aIncludes bibliographical references (page 12).
606   $aGroundwater flow$zCalifornia$zVentura County
606   $aHydrogeology$zCalifornia$zVentura County
606   $aIsotope geology$zCalifornia$zVentura County
606   $aGroundwater flow$2fast
606   $aHydrogeology$2fast
606   $aIsotope geology$2fast
607   $aCalleguas Municipal Water District (Calif.)
607   $aCalifornia$zCalleguas Municipal Water District$2fast
607   $aCalifornia$zVentura County$2fast
615  0$aGroundwater flow
615  0$aHydrogeology
615  0$aIsotope geology
615  7$aGroundwater flow.
615  7$aHydrogeology.
615  7$aIsotope geology.
700   $aIzbicki$b John A.$01382858
702   $aMartin$b Peter$f1953-
712 02$aGeological Survey (U.S.),
712 02$aCalleguas Municipal Water District (Calif.)
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906   $aBOOK
912   $a9910716582803321
996   $aUse of isotopic data to evaluate recharge and geologic controls on the movement of ground water in Las Posas Valley, Ventura County, California$93472913
997   $aUNINA