Porter, Porter <br/><br/>
How things work 

 - Hong Kong  Time-Life Books  1996 
 - 64 
 - Nature Company discoveries library .
<br/><br/> ext and drawings explain the workings of certain everyday items including bicycles, traffic lights, and computers 
<br/><br/><label>ISBN: </label>0783591241 
<br/><br/><label>Dewey Class. No.: </label>000  / TIM