P. S. Nutman <br/><br/>
Symbiotic nitrogen fixation in plants 

 - London  Cambridge University Press  1976 
 - 584p 
<br/><br/>P. S. Nutman: Symbiotic nitrogen fixation in plants.  London.  Cambridge University Press, 1976. 0-521-20645-6--(589.95NUT)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>0-521-20645-6 
<br/><br/><label>Dewey Class. No.: </label>589.95  / NUT