Alexandria, Virginia <br/><br/>
How Things Work 

 - New York, USA  Time Life Books  1991 
<br/><br/> Questions and answers provide information about how cameras, elevators, car engines, tops, yo-yos, and other devices work. Includes Charts, diagrams, and activities section. 
<br/><br/><label>ISBN: </label>0-8094-4874-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Juvenile Nonfiction
<br/><br/><label>Dewey Class. No.: </label>JN 620 TLB