LEADER 01916oam  2200529   450 
001 9910713779103321
005 20200724111623.0
035   $a(CKB)5470000002503890
035   $a(OCoLC)966435042
035   $a(OCoLC)995470000002503890
035   $a(EXLCZ)995470000002503890
100   $a20161219d1997      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aStudy of nonpoint source nutrient loading in the Patuxent River Basin, Maryland /$fStephen D. Preston
210  1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d1997.
215   $a1 online resource (6 unnumbered pages) $ccolor illustrations, color maps
225 1 $aWater-resources investigations report ;$v96-4273
320   $aIncludes bibliographical references (page 6).
606   $aNutrient pollution of water$zMaryland$zPatuxent River Watershed
606   $aWater quality$zMaryland$zPatuxent River Watershed
606   $aNonpoint source pollution$zMaryland$zPatuxent River Watershed
606   $aNonpoint source pollution$2fast
606   $aNutrient pollution of water$2fast
606   $aWater quality$2fast
607   $aMaryland$zPatuxent River Watershed$2fast
615  0$aNutrient pollution of water
615  0$aWater quality
615  0$aNonpoint source pollution
615  7$aNonpoint source pollution.
615  7$aNutrient pollution of water.
615  7$aWater quality.
700   $aPreston$b Stephen D.$f1955-$01407136
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bUND
801  2$bGPO
906   $aBOOK
912   $a9910713779103321
996   $aStudy of nonpoint source nutrient loading in the Patuxent River Basin, Maryland$93487729
997   $aUNINA