Poskitt, Kjartan <br/><br/>
Murderous maths :  the secrets of sums / 
Kjartan Poskitt. 
 - New York :  Scholastic,  2014. 
 - 208 pages :  part. ill.;  20 cm. 
<br/><br/><label>ISBN: </label>978-1-407147-23-9 
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<br/><br/><label>Subjects--Geographic Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>Cir 510  P855  2014