Oxlade, Chris <br/><br/>
Knowledge masters plus :  how things work / 
Chris Oxlade. 
 - London :  Zigzag Books ,  2002. 
<br/><br/><label>ISBN: </label>1-903954-43-6 
<br/><br/><label>Dewey Class. No.: </label>609.2 Ox4 2002