000 00351nam a2200145Ia 4500
008 140317s9999 xx 000 0 und d
082 _a574.192
100 _aQuispel,A.
245 4 _aThe biology of nitrogen fixation.
260 _aAmsterdam
_bElsevier
_c1974
300 _a769
653 _aBiology
653 _aNitrogen fixation
942 _2ddc
_cBK
999 _c7653
_d7653