LEADER 01636nam  2200421 a 450 
001 9910701705503321
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035   $a(CKB)5470000002421048
035   $a(OCoLC)794271885
035   $a(EXLCZ)995470000002421048
100   $a20120525d2012      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aWater-quality assessment of the Cambrian-Ordovician aquifer system in the northern Midwest, United States$b[electronic resource] /$fby John T. Wilson
210  1$aReston, Va. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2012.
215   $a1 online resource (xvi, 154 pages) $cillustrations (some color), color maps
225 1 $aScientific investigations report ;$v2011-5229
300   $aTitle from title screen (viewed on May 25, 2012).
300   $a"National Water-Quality Assessment Program."
320   $aIncludes bibliographical references (pages 121-129).
606   $aGroundwater$xQuality$zMiddle West
606   $aWater quality$zMiddle West
606   $aAquifers$zMiddle West
615  0$aGroundwater$xQuality
615  0$aWater quality
615  0$aAquifers
700   $aWilson$b John T$g(John Thomas),$f1963-$01397119
712 02$aNational Water-Quality Assessment Program (U.S.)
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910701705503321
996   $aWater-quality assessment of the Cambrian-Ordovician aquifer system in the northern Midwest, United States$93523561
997   $aUNINA