Clifford, Tim <br/><br/>
Energy. 

 - 48p.: col. ill.   25cm. 
<br/><br/><label>ISBN: </label>978-1-60044-622-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Force and energy--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>531.6 C612 2011