000 00322nam a2200121Ia 4500
008 230108s9999 xx 000 0 und d
100 _aYadav (KS) & Dadarwal
245 0 _aBiological Hitrogen Fixation Research Statves in India 1989
260 _bS P P & B
365 _b150.00
650 _aSoil science
942 _cBK
999 _c237760
_d237760