Postgate, J. R. <br/><br/>
Nitrogen fixation  
John Postgate. 
 - London :  E. Arnold,  1978 
 - 67, [1] p. : ill  hbk 
<br/><br/><label>ISBN: </label>0713126884 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen-fixing microorganisms.<br/>Nitrogen cycle.<br/>Root-tubercles.
<br/><br/><label>LC Class. No.: </label>QR113.P6 1978