LEADER 01932oam 2200541 450 001 9910713902303321 005 20201030094813.0 035 $a(CKB)5470000002506645 035 $a(OCoLC)681272330$z(OCoLC)624932249$z(OCoLC)667891330$z(OCoLC)974643829 035 $a(OCoLC)995470000002506645 035 $a(EXLCZ)995470000002506645 100 $a20101113d1986 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aTemporal changes in sulfate, chloride, and sodium concentrations in four eastern Pennsylvania streams /$fby James L. Barker 210 1$aHarrisburg, Pennsylvania :$cU.S. Geological Survey,$d1986. 215 $a1 online resource (iv, 22 pages) $cillustrations, 1 map 225 1 $aWater-resources investigations report ;$v85-4074 320 $aIncludes bibliographical references (page 22). 606 $aRivers$zPennsylvania 606 $aLand use$xEnvironmental aspects$zPennsylvania 606 $aAcid pollution of rivers, lakes, etc$zPennsylvania 606 $aAcid pollution of rivers, lakes, etc$2fast 606 $aLand use$xEnvironmental aspects$2fast 607 $aPennsylvania$2fast 615 0$aRivers 615 0$aLand use$xEnvironmental aspects 615 0$aAcid pollution of rivers, lakes, etc. 615 7$aAcid pollution of rivers, lakes, etc. 615 7$aLand use$xEnvironmental aspects. 700 $aBarker$b James L.$f1936-$01419434 712 02$aGeological Survey (U.S.), 801 0$bOCLCE 801 1$bOCLCE 801 2$bOCLCQ 801 2$bOCLCF 801 2$bOCLCO 801 2$bOCLCQ 801 2$bCOP 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910713902303321 996 $aTemporal changes in sulfate, chloride, and sodium concentrations in four eastern Pennsylvania streams$93549696 997 $aUNINA