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

 - Cambridge  Cambridge U.P.  1976 
 - xviii,584 p   
 - International Biological Programme, 7 .
<br/><br/><label>ISBN: </label>0521206456 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BOTANY
<br/><br/><label>Dewey Class. No.: </label>581.52482  / SYM