Encyclopaedia Britannica.    

 - London :  Encyclopaedia Britannica Incorporated,  c 1973. 
 - Vols. :  ill. ;  28 cm. 
<br/><br/>V. 2-- ; 
<br/><br/>112  112 
<br/><br/><label>ISBN: </label>0-85229-173-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia--Britannica.
<br/><br/><label>Dewey Class. No.: </label>032 / E19