No Author,  <br/><br/>
Encyclopaedia of Britanica Vol.23 

 - London  Un Known  1977 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias in American English--General encyclopedic worksGeneralia
<br/><br/><label>Dewey Class. No.: </label>31  / ANO