Adler, David A. <br/><br/>
Simple machines :  wheels, levers, and pulleys / 
 Wheels, levers, and pulleys 
by David A. Adler ; illustrated by Anna Raff. 
 - First edition. 
 - New York, NY :  Holiday House,  2015. 
 - 1 volume (unpaged) :  color illustrations ;  29 cm 
<br/><br/> Ages 4-8.  Grades K-3. 
<br/><br/><label>ISBN: </label>9780823433094 (hardcover) 9780823435722 
<br/><br/><label>LCCN: </label>2014026802 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Simple machines--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>TJ147  / .A4154 2015 
<br/><br/><label>Dewey Class. No.: </label>621.8