Encyclopaedia Britannica Inc <br/><br/>
New Encyclopaedia Britannica  Vol 1  1987 .-Edn 15 

 - Edn 15 
 -  Encyclopaedia Britannica Inc, Chicago 
 - pp 980;   22*28 
<br/><br/><label>Dewey Class. No.: </label>N87.1/B17142