00442nam a2200169Ia 4500008004100000020001500041082001600056100001700072245003600089260004000125300000800165650002300173650001800196653002200214700002100236700001500257170901s1979    xx            000 0 und d  a0471351342  a589.7bH28T  aHardy, R.W.F 0aTreatise on dinitrogen fixation  aNew YorkbJohn Wiley and Sonsc1979  a812  aBotanical sciences  aPure Sciences  aNitrogen fixation  aBottomley, Frank  aBurns, R.C