000 00327nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a633:631.811
_bGUP
100 _aGupta, U S
245 0 _aPhysiological aspects of crop nutrition and resistance
260 _aDelhi
_bAlma Ram
_c1977
650 _aCrop nutrition
942 _cBK
999 _c28044
_d28044