00409nam a2200121Ia 4500008004100000100002700041245006100068260004000129300000800169942000700177952008600184999001700270140113s9999    xx            000 0 und d  a"Stewart, W.D.P., Ed."  aNitrogen fixation by free living micro-organisms (IBP 6)  a1975bCambridge Univ. PresscLondon  a471  cBK  00104070aVTLbVTLd2014-01-13l0pVBK3083r2014-01-13 00:00:00w2014-01-13yBK  c59765d59765