Chamberlain, C.J. <br/><br/>
Gymnosperms Structure & Evolution 

 - 1st 
 - New Delhi  CBS Publishers & Distributors  2005 
 - 484p. 
<br/><br/><label>ISBN: </label>8123912714 
<br/><br/><label>Dewey Class. No.: </label>585  / Cha-G