LEADER 01308oam 2200397Ia 450 001 9910697411003321 005 20080908120845.0 035 $a(CKB)5470000002388836 035 $a(OCoLC)56208011 035 $a(EXLCZ)995470000002388836 100 $a20040817d1999 ua 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aMicrobial and spectral reflectance techniques to distinguish neutral and acidic drainage$b[electronic resource] 210 1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[1999] 215 $a4 unnumbered pages $cdigital, PDF file 225 1 $aUSGS fact sheet ;$vFS-118-99 300 $aTitle from PDF title screen (viewed Aug. 17, 2004). 300 $a"June 1999." 606 $aAcid mine drainage$zUnited States 606 $aWater$xPollution$zUnited States 615 0$aAcid mine drainage 615 0$aWater$xPollution 712 02$aGeological Survey (U.S.) 801 0$bGPO 801 1$bGPO 801 2$bOCLCQ 801 2$bOCLCG 801 2$bGPO 906 $aBOOK 912 $a9910697411003321 996 $aMicrobial and spectral reflectance techniques to distinguish neutral and acidic drainage$93101996 997 $aUNINA