Cooper, Chris,  <br/><br/>
How does it work? 

 - 64 pages :   colour illustrations ;   30 cm 
<br/><br/><label>ISBN: </label>0856138959 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions
<br/><br/><label>Dewey Class. No.: </label>609