00752nam a2200193 a 4500001001300000005001500013008004100028049001700069052001600086082001400102100003500116245013100151260003100282300002900313502014000342504004100482900002500523950001000548WDM20060069820201106134812060421s2004    us a          000   eng  0 lWM471845fDP02a631.4bY59s0 a631.42211 a유가영d1971-0KAC20174005110aSoil structure and organic carbon dynamics:bthe influence of tillage practices and soil physical properties/dby Ga Young Yoo  aAnn Arbor, MI:bUMI,c2004  ax, 137 p.:bill.;c23 cm1 aThesis (Ph.D.) --bGraduate College of the Univ. of Illinois at Urbana-Champaign,cNatural Resources and Environmental Sciences,d2004.  aIncludes bibliographical references.10aYoo, Gayoung,d1971-0 bUS$85