The World Book Encyclopedia: U-V  Volume 20 

 - Chicago  "World Book, Inc."  1997 
 - 454 pages 
<br/><br/> This volume of The World Book Encyclopedia covers topics beginning with the letters U and V. It provides useful information about people, places, science, history, culture, and many other subjects. 
<br/><br/><label>ISBN: </label>0716600978 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference works
<br/><br/><label>Index Terms--Genre/Form: </label><br/>General encyclopedias
<br/><br/><label>Universal Decimal Class. No.: </label>030  / T-44