Encyclopedia Britannica (Index to vol 1 to 23) / 
William Benton. 
 - Chicago :  Encyclopedia Britannica,  c1968. 
 - various pages :  ill. ;  29 cm. 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>LCCN: </label>48003431  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.
<br/><br/><label>LC Class. No.: </label>AE5  / .E363 1948 
<br/><br/><label>Dewey Class. No.: </label>031/BEE