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100   $a20101111d1997      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 $eeffects of pipe-outlet terracing on quantity and quality of surface runoff and ground water in a small carbonate-rock basin near Churchtown, Pennsylvania, 1983-89 /$fby Patricia L. Lietman, Linda C. Gustafson-Minnich, and David W. Hall ; prepared in cooperation with the Pennsylvania Department of Environmental Protection
210  1$aLemoyne, Pennsylvania :$cU.S. Geological Survey,$d1997.
215   $a1 online resource (vii, 62 pages) $cillustrations, maps
225 1 $aWater-resources investigations report ;$v94-4206
225 1 $aWater-quality study of the Conestoga River Headwaters, Pennsylvania
320   $aIncludes bibliographical references (pages 61-62).
517   $aEvaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania 
606   $aWater quality$zPennsylvania$zConestoga River Watershed
606   $aGroundwater$zPennsylvania$zConestoga River Watershed
606   $aAgricultural pollution$zPennsylvania$zConestoga River Watershed
606   $aAgriculture$xEnvironmental aspects$zPennsylvania$zConestoga River Watershed
606   $aTerracing$zPennsylvania$zConestoga River Watershed
606   $aNutrient pollution of water$zPennsylvania$zConestoga River Watershed
606   $aAgriculture$xEnvironmental aspects$2fast
606   $aNutrient pollution of water$2fast
606   $aWater quality$2fast
607   $aPennsylvania$zConestoga River Watershed$2fast
615  0$aWater quality
615  0$aGroundwater
615  0$aAgricultural pollution
615  0$aAgriculture$xEnvironmental aspects
615  0$aTerracing
615  0$aNutrient pollution of water
615  7$aAgriculture$xEnvironmental aspects.
615  7$aNutrient pollution of water.
615  7$aWater quality.
700   $aLietman$b Patricia L.$01387758
702   $aGustafson-Minnich$b Linda C.
702   $aHall$b David W.
712 02$aGeological Survey (U.S.),
712 02$aPennsylvania.$bDepartment of Environmental Protection.
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906   $aBOOK
912   $a9910716586403321
996   $aEvaluation of agricultural best-management practices in the Conestoga River headwaters, Pennsylvania$93453531
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