Wardle, Terry,  <br/><br/>
The hardest sum in the world 

 - 118 pages :   illustrations ;   20 cm 
<br/><br/><label>ISBN: </label>0862641322 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English fiction
<br/><br/><label>Dewey Class. No.: </label>823