00385nam a2200133Ia 4500008004100000082001800041100004000059245003900099260003100138300001300169600002300182600002200205650002400227130903s9999    xx            000 0 und d  a631.461.4  L7  aEdited  R.W.F.Hardy and W.S.Silver.  aA treatise on dinitrogen fixation.  aNew YorkbJohn Wileyc1977  axi,675p.  aHardy, R.W.F., ed.  aSilver, W.S., ed.  aDinitrogen fixation