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035   $a(CKB)5470000002484160
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100   $a20161207d1951      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aGeology and ground-water resources of the Helena Valley, Montana /$fby Howard W. Lorenz and Frank A. Swenson ; with a section on the chemical quality of the water ; by Herbert A. Swenson ; prepared as part of a program of the Department of the Interior for development of the Missouri River Basin
210  1$aWashington, D.C. :$cUnited States Department of the Interior, Geological Survey,$d1951.
215   $a1 online resource (ii, 68 pages) $cillustrations, maps +$e3 plates
225 1 $aGeological Survey circular ;$v83
300   $a"April 1951."
320   $aIncludes bibliographical references (pages 42-43).
606   $aGeology$zMontana$zPrickly Pear Creek Valley
606   $aGroundwater$zMontana$zPrickly Pear Creek Valley
606   $aHydrogeology$zMontana$zPrickly Pear Creek Valley
606   $aHydrology$zMontana$zPrickly Pear Creek Valley
606   $aGeology$2fast
606   $aGroundwater$2fast
606   $aHydrogeology$2fast
606   $aHydrology$2fast
607   $aPrickly Pear Creek Valley (Mont.)
607   $aMontana
607   $aMontana$2fast
607   $aMontana$zPrickly Pear Creek Valley$2fast
615  0$aGeology
615  0$aGroundwater
615  0$aHydrogeology
615  0$aHydrology
615  7$aGeology.
615  7$aGroundwater.
615  7$aHydrogeology.
615  7$aHydrology.
700   $aLorenz$b Howard Wilhelm$01408283
702   $aSwenson$b Frank A$g(Frank Albert),
702   $aSwenson$b Herbert A$g(Herbert Alfred),$f1911-
712 02$aGeological Survey (U.S.),
801  0$bOCLCE
801  1$bOCLCE
801  2$bCOP
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801  2$bOCLCQ
801  2$bOCLCA
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906   $aBOOK
912   $a9910711588803321
996   $aGeology and ground-water resources of the Helena Valley, Montana$93491774
997   $aUNINA