Neuschwander, Cindy. <br/><br/>
Sir Cumference and the Great Knight of Angleland  a math adventure 
Cindy Neuschwander 
 - ed. 
 - [S.l.]  Charlesbridge  2001 
 - 32 p. 
<br/><br/><label>ISBN: </label>032926124X 141310729X 157091169X (pbk.) 1570911703 (lib. bdg.)