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035   $a(OCoLC)885364960$z(OCoLC)896811308
035   $a(OCoLC)995470000002472969
035   $a(EXLCZ)995470000002472969
100   $a20140806d1992      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aHydrogeology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States /$fby H.L. Young ; with a section on ground-water quality by D.I. Siegel
210  1$aWashington :$cU.S. Department of the Interior, U.S. Geological Survey,$d1992.
215   $a1 online resource (vii, B99 pages) $cillustrations (some color), maps (some color) +$e1 plate
225 1 $aU.S. Geological Survey professional paper ;$v1405-B
225 1 $aRegional aquifer-system analysis--northern Midwest
320   $aIncludes bibliographical references (pages B93-B99).
606   $aGroundwater$zMiddle West
606   $aAquifers$zMiddle West
606   $aGeology, Stratigraphic$yCambrian
606   $aGeology, Stratigraphic$yOrdovician
606   $aAquifers$2fast
606   $aCambrian Geologic Period$2fast
606   $aGeology, Stratigraphic$2fast
606   $aGroundwater$2fast
606   $aOrdovician Geologic Period$2fast
607   $aMiddle West$2fast
615  0$aGroundwater
615  0$aAquifers
615  0$aGeology, Stratigraphic
615  0$aGeology, Stratigraphic
615  7$aAquifers.
615  7$aCambrian Geologic Period.
615  7$aGeology, Stratigraphic.
615  7$aGroundwater.
615  7$aOrdovician Geologic Period.
700   $aYoung$b H. L.$01394857
702   $aSiegel$b Donald I.
712 02$aGeological Survey (U.S.),
801  0$bWAU
801  1$bWAU
801  2$bWAU
801  2$bCOP
801  2$bOCLCQ
801  2$bOCLCA
801  2$bGPO
906   $aBOOK
912   $a9910709728003321
996   $aHydrogeology of the Cambrian-Ordovician aquifer system in the northern Midwest, United States$93452688
997   $aUNINA