The World Book Inc. <br/><br/>
The world book encyclopedia-U Vol.20 

 - The World Book Inc.  1990 
 - 470p. 
<br/><br/><label>ISBN: </label>716600900 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GENERAL BOOKS
<br/><br/><label>Dewey Class. No.: </label>031 WBI