000 00341nam a2200121Ia 4500
008 180612s9999||||xx |||||||||||||| ||und||
041 _aen
082 _a631.84
100 _aSTEWART and Gallen
245 0 _aNitrogen fixation Annual Proceedings of the Phytochemichal Society of Europe
260 _bLondon Academic press
_c1980
942 _cPR
999 _c39760
_d39760