Glover, David. <br/><br/>
Levers / 
[by] David Glover. 
 - Crystal Lake, IL :  Rigby Interactive Library,  1997. 
 - 24 p. :  col. ill. ;  28 cm. 
 - Simple machines .
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Introduces the principles of levers as simple machines, using examples from everyday life. 
<br/><br/><label>ISBN: </label>1575720809 
<br/><br/><label>LCCN: </label>96015816 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Levers--Juvenile literature.<br/>Levers.<br/>Simple machines.
<br/><br/><label>LC Class. No.: </label>TJ147  / .G56 1997 
<br/><br/><label>Dewey Class. No.: </label>621.8/11