Encyclopedia Britannica. 

 - London :   Encyclopedia Britanica,  1973. 
 - Vols. :   ill. ;   29 cm. 
<br/><br/>V. 15-- ; 
<br/><br/>333  333 
<br/><br/><label>ISBN: </label>0-085229-173-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia.
<br/><br/><label>Dewey Class. No.: </label>032 / E19