Hobbs, David <br/><br/>
Enterprising Mathematics   For gcse and Standard grade 
Y11 Central 
 - Oxford  Heinemann Educational Books Ltd  c1993. 
 - 119p.  ill. ;  27 cm. 
<br/><br/><label>ISBN: </label>9780435515164 
<br/><br/><label>Dewey Class. No.: </label>510 ENTE