Osborne, Mary Pope. <br/><br/>
Dog heroes 
Mary Pope Osborne 
 - ed. 
 - Greensboro  Random House  2011 
 - 119 p. 
 - Magic tree house fact tracker .
 - Magic tree house fact tracker .
<br/><br/><label>ISBN: </label>9780329890551 (Follett bdg.) 9780375860126 (pbk.) 9780375960123 (lib. bdg.)