Julie Ellis. <br/><br/>
What's your angle, pythagoras? / 
Julie Ellis 
 - 85 Main Street, Watertown, MA 02472  Scholastic Inc.  2004 
 - 32pages 
<br/><br/>
<br/><br/><label>ISBN: </label>0439742013 9780439742016 
<br/><br/><label>LC Class. No.: </label>LEX 690   / EL591 2004