Poskitt, Kjartan <br/><br/>
The key to the universe : it's maths with the laughs added in! /   Kjartan Poskitt.   

 - London :   Scholastic,  2009.   
 - 192 p. 
 - Murderous maths.   .
<br/><br/><label>ISBN: </label>9781407107110   
<br/><br/><label>Dewey Class. No.: </label>CIR 510 P842 2009