Encyclopaedia Britannica Inc <br/><br/>
New Encyclopaedia Britannica  Vol 6  1987 .-Edn 15 

 - Edn 15 
 -  Encyclopaedia Britannica, Chicago 
 - pp 988;   22*28 
<br/><br/><label>Dewey Class. No.: </label>N87.6/B17147