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100   $a20090611d2009      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aSPARROW modeling$b[electronic resource] $eenhancing understanding of the nation's water quality /$fby Stephen D. Preston ... [and others].
210  1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[2009]
215   $a6 pages $cdigital, PDF file
225 1 $aFact sheet ;$v2009-3019
300   $aTitle from title screen (viewed on June 11, 2009).
300   $a"March 2009."
320   $aIncludes bibliographical references (page 6).
517   $aSPARROW modeling 
606   $aEnvironmental monitoring$zUnited States
606   $aWater quality$zUnited States$xMathematical models
606   $aWater$xPollution$zUnited States$xMathematical models
606   $aNutrient pollution of water$zUnited States$xMathematical models
615  0$aEnvironmental monitoring
615  0$aWater quality$xMathematical models.
615  0$aWater$xPollution$xMathematical models.
615  0$aNutrient pollution of water$xMathematical models.
701   $aPreston$b Stephen D.$f1955-$01407136
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a9910698991903321
996   $aSPARROW modeling$93523354
997   $aUNINA