000 00325nam a2200133Ia 4500
008 180721s9999 xx 000 0 und d
082 _aJ Q3
100 _a"Jana, B.L."
245 0 _aCropping systems for sustainable farming
260 _b"Pointer Publishers, Jaipur"
260 _c2013
365 _b2200
942 _cREF
999 _c131868
_d131868