Bergersen F J Ed. <br/><br/>
Methods for evaluating biological nitrogen fixation 

 - Chichester  John Wiley          1980 
 - x, 702p.  cm. 
<br/><br/><label>Standard No.: </label>49572 
<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, M0