Neuschwander, Cindy. <br/><br/>
Sir Cumference and all the king's tens  a math adventure 
Cindy Neuschwander 
 - ed. 
 - [S.l.]  Charlesbridge  2009 
 - 32 p. 
<br/><br/><label>ISBN: </label>9780329718398 (Follett bdg.) 9781570917271 (trade) 9781570917288 (pbk.)