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001 9910716893803321
005 20210915092037.0
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035   $a(OCoLC)681285035$z(OCoLC)622499728$z(OCoLC)667904710$z(OCoLC)985367149
035   $a(OCoLC)995470000002525244
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100   $a20101113d1998      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aHydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, Central Nebraska, July 1995 through September 1997 /$fby I.M. Verstraeten, V.L. McGuire, and K.L. Heckman ; prepared in cooperation with the Upper Big Blue Natural Resources District
210  1$aLincoln, Nebraska :$cU.S. Department of the Interior, U.S. Geological Survey,$d1998.
215   $a1 online resource (v, 81 pages) $cillustrations, maps (some color)
225 1 $aWater-resources investigations report ;$v98-4207
320   $aIncludes bibliographical references (pages 46-48).
606   $aNitrates$xEnvironmental aspects$zBig Blue River Watershed (Neb. and Kan.)
606   $aHydrogeology$zBig Blue River Watershed (Neb. and Kan.)
606   $aGroundwater$xPollution$zBig Blue River Watershed (Neb. and Kan.)
606   $aGroundwater$xPollution$2fast
606   $aNitrates$xEnvironmental aspects$2fast
607   $aUnited States$zBig Blue River Watershed$2fast
615  0$aNitrates$xEnvironmental aspects
615  0$aHydrogeology
615  0$aGroundwater$xPollution
615  7$aGroundwater$xPollution.
615  7$aNitrates$xEnvironmental aspects.
700   $aVerstraeten$b I. M$g(Ingrid Maria),$01383266
702   $aMcGuire$b Virginia L.
702   $aHeckman$b K. L.
712 02$aGeological Survey (U.S.),
712 02$aUpper Big Blue Natural Resources District (Neb.)
801  0$bOCLCE
801  1$bOCLCE
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801  2$bGPO
906   $aBOOK
912   $a9910716893803321
996   $aHydrogeology and subsurface nitrate in the Upper Big Blue Natural Resources District, Central Nebraska, July 1995 through September 1997$93472548
997   $aUNINA