The World Book encyclopedia. 

 - Chicago, Ill. :  World Book, Inc.,  2009. 
 - 22 v. :  col. illus. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/> "A 22-volume, highly illustrated, A-Z general encyclopedia for all ages, featuring sections on how to use World Book, other research aids, pronunciation key, a student guide to better wrtiing, speaking, and research skills, and comprehensive index"-Provided by publisher. 
<br/><br/><label>ISBN: </label>978-0-7166-0109-8 
<br/><br/><label>LCCN: </label>2008028060 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.