Pipe, Jim <br/><br/>
Balancing: cranes, scales and seesaws 

 - First edition 
 - London:  Aladdin books,  2015. 
 - 32 pages,  Color illustrations,  25 cm. 
 - Science starters   Level 3 .
<br/><br/>
<br/><br/> Children 
<br/><br/><label>ISBN: </label>9780749668761 
<br/><br/><label>Dewey Class. No.: </label>J 531.11 PIPE