00410nam a2200145Ia 4500008004100000020001800041082001600059100001800075245005700093260004300150300000800193650002300201650001800224653002200242170901s1975    xx            000 0 und d  a3340682305149  a589.7bT12N  aTakahashi, H. 0aJIBP SynthesisbNitrogen Fixation and Nitrogen Cycle  aTokyobUniversity of Tokyo Pressc1975  a161  aBotanical sciences  aPure Sciences  aNitrogen fixation