Symbiotic nitrogen fixation in plants / 
edited by P.S. Nutman 
 - 584 p. :  il. ;  23 cm. 
 - International biological programme ;  7 .
<br/><br/><label>ISBN: </label>0521206456 
<br/><br/><label>Subjects--Topical Terms: </label><br/>NITROGENO--FIJACION.
<br/><br/><label>Dewey Class. No.: </label>589.95041  / S9