Raintree Steck-Vaughn illustrated science encyclopedia. 

 - Austin, TX :  Raintree Steck-Vaughn Pub,  c1997. 
 - 24 v. : colored, illustrations. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Encyclopedias, Juvenile.