The world book encyclopedia volume 20 

 - Chicago  World book 
 - 454 p  col.ill.  26 cm 
<br/><br/><label>ISBN: </label>9780716601098 
<br/><br/><label>LC Class. No.: </label>R 031 WORL 
<br/><br/><label>Dewey Class. No.: </label>R 031 WORL