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100   $a19941230d1993      ua         0
101 0 $aeng
181   $ctxt$2rdacontent
182   $ch$2rdamedia
183   $ahe$2rdacarrier
200 10$aMethods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program /$fby Thomas F. Cuffney, Martin E. Gurtz, and Michael R. Meador
210  1$aRaleigh, N.C. :$cU.S. Dept. of the Interior, U.S. Geological Survey ;$aDenver, CO :$cEarth Science Information Center, Open-File Reports Section [distributor],$d1993.
215   $av, 66 pages $cillustrations ;$d28 cm
225 1 $aU.S. Geological Survey open-file report ;$v93-406
300   $aDistributed to depository libraries in microfiche.
300   $aShipping list no.: 1994-0791-M.
320   $aIncludes bibliographical references (pages 62-66).
606   $aWater quality$zUnited States
606   $aBenthos$zUnited States
606   $aFreshwater ecology$zUnited States
615  0$aWater quality
615  0$aBenthos
615  0$aFreshwater ecology
700   $aCuffney$b Thomas F.$f1952-$01385362
701   $aGurtz$b Martin E$01385363
701   $aMeador$b Michael Rogers$f1958-$01385364
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
801  2$bOCL
801  2$bOCLCG
801  2$bGPO
906   $aBOOK
912   $a9910690025003321
996   $aMethods for collecting benthic invertebrate samples as part of the National Water-Quality Assessment Program$93432777
997   $aUNINA