000 00379cam a2200145ua 4500
003 OSt
008 221007b |||||||| |||| 00| 0 eng d
041 _aeng
082 _a631.451
_bDLT/SY
100 _aD'ltri, Frank M
_95272
245 _aSystems Approach to Conservation tillage /
260 _a :
_bLeuis Publishers Ine Michigan ,
_c1985.
300 _a384 ; .
942 _cBK
999 _c2855
_d2855