Brown, Graeme <br/><br/>
Excel at problem solving 
Graeme Brown, Jennifer Piggott 
 - Cambridge  Cambridge University Press  2007 
 - 64 p. : ill. ; 30 cm 
<br/><br/><label>ISBN: </label>9780521700436 
<br/><br/><label>Dewey Class. No.: </label>372.70440941 BRO