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100   $a20110930e19901988  ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aConcepts for a National Water-Quality Assessment Program /$fby Robert M. Hirsch, William M. Alley, and William G. Wilber
210  1$a[Reston, Virginia] :$cU.S. Department of the Interior, U.S. Geological Survey,$d1988.
210  3$a[Washington, D.C.] :$cUnited States Government Printing Office,$d1990.
215   $a1 online resource (vii, 42 pages) $cillustrations, maps
225 1 $aU.S. Geological Survey circular ;$v1021
320   $aIncludes bibliographical references (pages 39-42).
606   $aWater quality$zUnited States
606   $aWater quality$zUnited States$xMeasurement$vCase studies
606   $aWater quality$2fast
606   $aWater quality$xMeasurement$2fast
607   $aUnited States$2fast
608   $aCase studies.$2fast
615  0$aWater quality
615  0$aWater quality$xMeasurement
615  7$aWater quality.
615  7$aWater quality$xMeasurement.
700   $aHirsch$b Robert M.$01354173
702   $aAlley$b William M.
702   $aWilber$b William G.
712 02$aGeological Survey (U.S.),
801  0$bOCLCE
801  1$bOCLCE
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801  2$bGPO
906   $aBOOK
912   $a9910690071603321
996   $aConcepts for a National Water-Quality Assessment Program$93495964
997   $aUNINA