Encyclopaedia britannica 

 - Chicago  William benton pub. London       1973 
 - 1050p  cm. 
 -  V22 .
<br/><br/><label>Standard No.: </label>7,156 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>33:L68, J5;L3.22