"Peter Patilla","Terry McKenna (Illustrator)" <br/><br/>
GUIDE TO GOOD SUBTRACTING 

 -  Kingfisher Books Ltd,  1990 
 - 32 
<br/><br/><label>ISBN: </label>9780753401569 
<br/><br/><label>Dewey Class. No.: </label>510  / 1100307