LEADER 01587nam  2200433Ia 450 
001 9910690034303321
005 20021101114913.0
035   $a(CKB)5470000002334921
035   $a(OCoLC)31197227
035 9 $aocm31197227
035   $a(OCoLC)995470000002334921
035   $a(EXLCZ)995470000002334921
100   $a19940929d1994      ua             0
101 0 $aeng
181   $ctxt$2rdacontent
182   $cn$2rdamedia
183   $anc$2rdacarrier
200 10$aNonpoint and point sources of nitrogen in major watersheds of the United States /$fby Larry J. Puckett
210  1$aReston, Va. :$cU.S. Geological Survey ;$aDenver, CO :$cUSGS Earth Science Information Center, Open-File Reports Section [distributor],$d1994.
215   $a9 pages $cillustrations, maps ;$d28 cm
225 1 $aWater-resources investigations report ;$v94-4001
320   $aIncludes bibliographical references (page 9).
606   $aNonpoint source pollution$zUnited States
606   $aWater$xNitrogen content$zUnited States
606   $aWater$xPollution$zUnited States$xPoint source identification
615  0$aNonpoint source pollution
615  0$aWater$xNitrogen content
615  0$aWater$xPollution$xPoint source identification.
700   $aPuckett$b Larry J$01381431
712 02$aGeological Survey (U.S.)
801  0$bGIS
801  1$bGIS
801  2$bSZZ
801  2$bAGL
801  2$bGPO
906   $aBOOK
912   $a9910690034303321
996   $aNonpoint and point sources of nitrogen in major watersheds of the United States$93424040
997   $aUNINA