000 00275nam a2200109Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
041 _aen
100 _aN.S.Subba Rao
245 0 _aBio fertilizers in agriculture.
260 _aNewdelhi
_bOxford& IBH Pub.co
_c1988
942 _cPR
999 _c42458
_d42458