000 00292 a2200109 4500
008 180702b xxu||||| |||| 00|
100 _9Sen.S.P.
245 _aBiofertilizers: Potentialities and problemes
_cS.P.Sen .P.palit
260 _a1988
_bNaya Udyog calcutta
300 _a140 p.
942 _2ddc
_cBK
999 _c6415
_d6415