000 00275nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aSRIVASTAVA. H. C Etc.,
245 0 _aCrop productivity
260 _cOxford & IBH Publs.
365 _b0
650 _aNIL
942 _cBK
999 _c94334
_d94334