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100   $a20210331d1997      ua             0
101 0 $aeng
135   $aur|||||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aBenefits of safer drinking water $ethe value of nitrate reduction /$fStephen R. Crutchfield, Joseph C. Cooper, Daniel Hellerstein
210  1$aWashington, DC :$cUnited States Department of Agriculture, Economic Research Service,$d1997.
215   $a1 online resource (iii, 15 pages) $cillustrations
225 1 $aAgricultural economic report ;$vno. 752
300   $a"June 1997"--Page i.
320   $aIncludes bibliographical references.
517   $aBenefits of safer drinking water 
606   $aWater quality$zUnited States
606   $aDrinking water$xPurification$zUnited States
606   $aNitrates
615  0$aWater quality
615  0$aDrinking water$xPurification
615  0$aNitrates.
700   $aCrutchfield$b Stephen R.$01397760
702   $aCooper$b Joseph$g(Joseph C.),$f1962-
702   $aHellerstein$b Daniel R.
712 02$aUnited States.$bDepartment of Agriculture.$bEconomic Research Service,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910715979503321
996   $aBenefits of safer drinking water$93459839
997   $aUNINA