The Gale Encyclopedia of Science 

 - 2nd ed 
 - New York : Gale Group,  2001 
 - 6V :  ill 
<br/><br/><label>ISBN: </label>078764370x (set) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Encyclopedias, Juvenile.<br/>Science--Encyclopedias.
<br/><br/><label>LC Class. No.: </label>Ref Q121  / G35 2001