"Peter Gash" <br/><br/>
Maths made easy Decimals 

 -  London : Kingfisher, 1999.,,Dorling Kindersley  2002 
 - 32 
<br/><br/><label>ISBN: </label>9781740334747 
<br/><br/><label>Dewey Class. No.: </label>510  / 1272