000 00395nam a2200157Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a572.429
_bF946
100 _aFry B A
245 _aNitrogen metabolism of micro-organisms
260 _aLondon
_bMethuen
_c1955
300 _a166p.
650 _aNitrogen-fixing microorganisms
942 _cBK
999 _c41192
_d41192