000 00264nam a2200097Ia 4500
100 _aMishustin E N & Shil Nikova V K
245 _aBiological Fixation of Atmosphericnitrogen
260 _bMacMillan Press, London
082 _aJ:1:41/N71/B09834
300 _app 420; 23*15
999 _c907
_d907