Bergersen F J Ed. <br/><br/>
Century of nitrogen fixation research    Present status and future prospects  

 -  1987 
<br/><br/><label>Standard No.: </label>81462 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>I:33(E150)p3,N86, M7