000 00284nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aShiv Raj (A)
245 0 _aIntrod to physiology of field crops
260 _bOfford and IBH
260 _c1978
365 _b13.50
942 _cBK
999 _c203781
_d203781