Ball, Johnny <br/><br/>
Mathmagicians / 
Johnny Ball. 
 - London :  Dorling Kindersley Ltd,  2009. 
 - 93 p. : col. ill.:  29 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-1-40533-727-4 
<br/><br/><label>LC Class. No.: </label>510 B21m