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100   $a20040805d1999      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aNitrogen concentrations and deposition in rainfall at two sites in the Coastal Bend area, South Texas, 1996-98$b[electronic resource] /$fD.J. Ockerman and C.W. Livingston ; in cooperation with the Texas Agricultural Experiment Station, Corpus Christi, Texas
210  1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[1999]
215   $a6 pages $cdigital, PDF file
225 1 $aUSGS fact sheet ;$vFS-146-99
300   $aTitle from PDF title screen (viewed Aug. 5, 2004).
300   $a"December 1999."
320   $aIncludes bibliographical references.
606   $aNitrogen$xEnvironmental aspects$zTexas$zCoastal Bend
606   $aWater$xNitrogen content$zTexas$zCoastal Bend
606   $aWater quality management$zTexas$zCoastal Bend
615  0$aNitrogen$xEnvironmental aspects
615  0$aWater$xNitrogen content
615  0$aWater quality management
700   $aOckerman$b Darwin J$01387022
701   $aLivingston$b C. W$01391016
712 02$aTexas Agricultural Experiment Station.
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910697596703321
996   $aNitrogen concentrations and deposition in rainfall at two sites in the Coastal Bend area, South Texas, 1996-98$93444278
997   $aUNINA