Subbarao N S Ed. <br/><br/>
Biological nitrozen fixation ; Recent developments 

 -  1988 
<br/><br/><label>Standard No.: </label>11071 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>I:33(E150), M8