BERGERSEN, F J. <br/><br/>
A century of nitrogen fixation research : Present status and future prospects. 

 - London.  The Royal Society.  1987 
 - vi , 66-29 
<br/><br/><label>ISBN: </label>0 85403 327 0 
<br/><br/><label>Dewey Class. No.: </label>581.133072