Encyclopaedia Britannica Inc. <br/><br/>
The New Encyclopaedia Britannica: Micropedia Reference (Vol-20) 

 - 15th 
 - Chicago  Encyclopaedia Britannica Inc  2007 
 - 794p. ; (4th Floor) 
<br/><br/><label>ISBN: </label> RS 1718.75 
<br/><br/><label>Dewey Class. No.: </label>Encyclopaedia