HOW things work 

 - Reprinted 
 - 80p.  col. ill.  27cm. 
 - A Child's First Library of Learning .
<br/><br/><label>ISBN: </label>0783518595  RM65.54 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology--Children's Encyclopedias And Dictionaries
<br/><br/><label>Dewey Class. No.: </label>503