000 00290nam a2200121Ia 4500
008 161118s2016 xx 000 0 und d
082 _a631.582 DIX-C
100 _aDixit, R. S.
245 0 _acropping system research
260 _aLudhiana
_bKalyani
_c2002
300 _a120p;
942 _2ddc
999 _c27215
_d27215