Bethune, Helen <br/><br/>
Why do diamonds glitter and other resourceful questions? 
Helen Bethune 
 - Cambridge  Cambridge University Press  2009 
 - 24 p. : ill. : col 
<br/><br/><label>ISBN: </label>9780521743709 
<br/><br/><label>Dewey Class. No.: </label>553.82 BET