000 00378nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a631.461.5 L4
100 _a"Quispel., Ed."
245 _aThe biology of nitrogen fixation.(North Holland Research Monograph Frontiers of biology vol.33)
260 _a1974
_bNorth Holland Pub. Co.
_cAmsterdam
300 _a796
942 _cBK
999 _c59057
_d59057