000 00434nam a2200157Ia 4500
008 130223s9999 xx 000 0 und d
080 _a631.582:631.51.021:631.557
100 _aDick, W.A.
245 _aInfluence of long-term tillage and rotation combinations on crop yield and selec
260 _aOhio
260 _c1986
300 _a30 p.
440 _aNo. 1180; Ohio State Universit
901 _pS38856
942 _cB
_2udc
999 _c125463
_d125463