nitrogen fixation  volume i ecology 

 - new York  oxford  1981 
 - xi/306 
<br/><br/>INDEX 
<br/><br/><label>ISBN: </label>019854401 
<br/><br/><label>LC Class. No.: </label>574.133/NIT  / 1 
<br/><br/><label>Dewey Class. No.: </label>574.133/NIT  / 1