Simon, David <br/><br/>
Screws 
David Simon 
 - 32p.  col. ill.  26cm. 
 - How Machines Work .
<br/><br/><label>ISBN: </label>9833671128 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Screws--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>621.882