The World Book Encyclopedia. 

 - London :  World Book-Childcraft International,  c 1982. 
 - Vols. :  ill. ;  26 cm. 
<br/><br/>V. 21- (W-X-Y-Z) ; 
<br/><br/>76  76 
<br/><br/><label>ISBN: </label>0-7166-0082-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia.<br/>Dictionaries.
<br/><br/><label>Dewey Class. No.: </label>031 / W893