000 00285nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a632.51
_bGUP
100 _aGupta, O P
245 0 _aWeed management: Principles and practices
260 _aBikaner
_bAgro Botanica
_c1998
942 _cBK
999 _c41498
_d41498