Wade, Harlan. <br/><br/>
Springs / 
words by Harlan Wade ; concept and ill. by Denis Wrigley. 
 - Milwaukee :  Raintree Childrens Books,  1977. 
 - 32 p. :  col. ill. ;  21 cm. 
<br/><br/> Easy-to-read text explains how the springs used in such objects as toys, clocks, and chairs, operate. 
<br/><br/><label>ISBN: </label>0817209883 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Springs(Mechanism)--Juvenile literature.