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035   $a(CKB)5470000002408339
035   $a(OCoLC)712023706
035   $a(EXLCZ)995470000002408339
100   $a20110411d2011      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aTillage practices in the conterminous United States, 1989-2004--datasets aggregated by watershed$b[electronic resource] /$fby Nancy T. Baker ; prepared in cooperation with the Conservation Technology Information Center
210  1$aReston, VA :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2011.
215   $a1 online resource (22 unnumbered pages)
225 1 $aData series ;$v573
300   $aTitle from title screen (viewed Apr. 7, 2011).
300   $a"National Water-Quality Assessment Program."
320   $aIncludes bibliographical references (page 12).
606   $aTillage$zUnited States
615  0$aTillage
700   $aBaker$b Nancy Tucker$f1957-$01396043
712 02$aNational Water-Quality Assessment Program (U.S.)
712 02$aConservation Technology Information Center.
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910700263603321
996   $aTillage practices in the conterminous United States, 1989-2004--datasets aggregated by watershed$93489825
997   $aUNINA