Postgate, John <br/><br/>
Nitrogen fixation 

 - London :  Edward Arnold (Publishers) Ltd,  1978. 
 - 68p.  : ill.  ; 21cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nitrogen<br/>Nitrogen fixation<br/>Fixation
<br/><br/><label>LC Class. No.: </label>BOT QR89.7.P67