Pine, Tillie S. <br/><br/>
Simple machines and how we use them / 
by Tillie S. Pine, Joseph Levine ; illustrated by Bernice Myers 
 - London :  Blackie,  1966 
 - 48 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label> Rs. 13.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Simple machines--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>621