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035   $a(OCoLC)995470000002510580
035   $a(EXLCZ)995470000002510580
100   $a20101111d1991      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aDistribution of selected herbicides and nitrate in the Mississippi River and its major tributaries, April through June 1991 /$fby D.A. Goolsby, R.C. Coupe, and D.J. Markovchick
210  1$aDenver, Colorado :$cU.S. Geological Survey,$d1991.
215   $a1 online resource (v, 35 pages) $cillustrations, map
225 1 $aWater-resources investigations report ;$v91-4163
320   $aIncludes bibliographical references (pages 34-35).
606   $aWater$xPollution$zMississippi River Valley
606   $aHerbicides$xEnvironmental aspects$zMississippi River Valley
606   $aNitrates$xEnvironmental aspects$zMississippi River Valley
606   $aHerbicides$xEnvironmental aspects$2fast
606   $aNitrates$xEnvironmental aspects$2fast
606   $aWater$xPollution$2fast
607   $aMississippi River Valley$2fast
615  0$aWater$xPollution
615  0$aHerbicides$xEnvironmental aspects
615  0$aNitrates$xEnvironmental aspects
615  7$aHerbicides$xEnvironmental aspects.
615  7$aNitrates$xEnvironmental aspects.
615  7$aWater$xPollution.
700   $aGoolsby$b D. A.$01384262
702   $aCoupe$b R. C.
702   $aMarkovchick$b D. J.
712 02$aGeological Survey (U.S.),
801  0$bOCLCE
801  1$bOCLCE
801  2$bOCLCQ
801  2$bOCLCF
801  2$bOCLCQ
801  2$bOCLCO
801  2$bOCLCQ
801  2$bCOP
801  2$bOCLCA
801  2$bGPO
906   $aBOOK
912   $a9910715345503321
996   $aDistribution of selected herbicides and nitrate in the Mississippi River and its major tributaries, April through June 1991$93503908
997   $aUNINA