000 00261nam a2200109Ia 4500
008 170101s1990 xx 000 0 und d
082 _a631.46 BIO
100 _aSarma, L.L
245 0 _aBiofertilizers
260 _aJodhpur
_bScientific
_c1990
942 _2ddc
_cRS
999 _c395281
_d395281