Hewitt, Sally <br/><br/>
Aire / Sally Hewitt ; ilustraciones Ian Thompson, Catherine Ward y Peter Wilks 

 - Bogotá : Panamericana Editorial 
 - 48 P. 
<br/><br/><label>ISBN: </label>10-958-30-1533-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Experimentos
<br/><br/><label>Dewey Class. No.: </label>705 Se17a