Holub, Joan. <br/><br/>
Zero the hero / 
Joan Hoab. 
 - New York:  Scholastic,  2012. 
<br/><br/>
<br/><br/><label>ISBN: </label>978-0-545-54740-6 
<br/><br/><label>Dewey Class. No.: </label>SC H7471 2012