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100   $a20100519d1999      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aNutrient and suspended-sediment concentrations, trends, loads, and yields from the nontidal part of the Susquehanna, Potomac, Patuxent, and Choptank rivers, 1985-96 /$fby Linda C. Darrell [and three others] ; in cooperation with the Maryland Department of Natural Resources, Tidewater Ecosystem Assessment
210  1$aBaltimore, Maryland :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d1999.
215   $a1 online resource (v, 39 pages) $cillustrations, color map
225 1 $aWater-resources investigations report ;$v98-4177
320   $aIncludes bibliographical references (pages 36-38).
606   $aNutrient pollution of water$zMaryland
606   $aSuspended sediments$zMaryland
606   $aWater quality$zMaryland$xMeasurement
606   $aNutrient pollution of water$2fast
606   $aSuspended sediments$2fast
606   $aWater quality$xMeasurement$2fast
607   $aSusquehanna River
607   $aPotomac River
607   $aPatuxent River (Md.)
607   $aChoptank River (Del. and Md.)
607   $aMaryland$2fast
607   $aMaryland$zPatuxent River$2fast
607   $aUnited States$zChoptank River$2fast
607   $aUnited States$zPotomac River$2fast
607   $aUnited States$zSusquehanna River$2fast
615  0$aNutrient pollution of water
615  0$aSuspended sediments
615  0$aWater quality$xMeasurement.
615  7$aNutrient pollution of water.
615  7$aSuspended sediments.
615  7$aWater quality$xMeasurement.
700   $aDarrell$b Linda C.$01407778
712 02$aGeological Survey (U.S.),
712 02$aMaryland.$bTidewater Ecosystem Assessment.
801  0$bOCLCE
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906   $aBOOK
912   $a9910716838403321
996   $aNutrient and suspended-sediment concentrations, trends, loads, and yields from the nontidal part of the Susquehanna, Potomac, Patuxent, and Choptank rivers, 1985-96$93490079
997   $aUNINA