Gordon J C <br/><br/>
Biological nitrogen fixation in forest ecosystem: Foundations and applications 

 -  1981 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>49570 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant Nitrogen
<br/><br/><label>Dewey Class. No.: </label>I:33E150, M1