Delevoryas, Theodore. <br/><br/>
Plant diversification 

 - 2d ed 
 - New York  Holt, Rinehart and Winston  1977 
 - xi, 144 p 
<br/><br/><label>ISBN: </label>30801338 
<br/><br/><label>Dewey Class. No.: </label>581.38