How things work 

 - 48 pages :   colour photographs, colour illustrations ;   29 cm 
 - My easy reference for technology .
 - My easy reference for technology .
<br/><br/> Includes glossary 
<br/><br/><label>ISBN: </label>9831503244 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science - Encyclopedias, Juvenile.
<br/><br/><label>Dewey Class. No.: </label>503