Encyclopaedia britannica 

 - Chicago  William benton LOndon        1973 
 - 1190p  cm. 
 -  V19 .
<br/><br/><label>Standard No.: </label>7,161 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>33:L68, J5;L3.19