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100   $a20170306d1992      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
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200 10$aEvaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania $edescription and water quality of the Little Conestoga Creek Headwaters prior to the implementation of nutrient management /$fby David K. Fishel [and three others]
210  1$aLemoyne, Pennsylvania :$cU.S. Geological Survey,$d1992.
215   $a1 online resource (viii, 68 pages) $cillustrations, map
225 1 $aWater-resources investigations report ;$v90-4131
225 1 $aWater-quality study of the Conestoga River Headwaters, Pennsylvania
300   $a"Prepared in cooperation with the Pennsylvania Department of Environmental Resources."
320   $aIncludes bibliographical references (pages 66-68).
517   $aEvaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania 
606   $aWater quality$zPennsylvania$xMeasurement
606   $aWatersheds$xResearch$zPennsylvania
606   $aWater-supply, Agricultural$zPennsylvania$xManagement
606   $aWater quality$xMeasurement$2fast
606   $aWatersheds$xResearch$2fast
607   $aPennsylvania$2fast
615  0$aWater quality$xMeasurement.
615  0$aWatersheds$xResearch
615  0$aWater-supply, Agricultural$xManagement.
615  7$aWater quality$xMeasurement.
615  7$aWatersheds$xResearch.
700   $aFishel$b David K.$01389381
712 02$aGeological Survey (U.S.),
712 02$aPennsylvania.$bDepartment of Environmental Resources.
801  0$bCOP
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996   $aEvaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania$93496379
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