ENCYLOPAEDIA BRITANNICA <br/><br/>
The new encyclopaedia briranica vol.20 

 - 15th 
 -  London, Encyclopaedia britann  ica, Inc.  1989 
 - [iv],850p; 
<br/><br/><label>ISBN: </label>0-85229-493-X 
<br/><br/><label>Dewey Class. No.: </label>32