The New Encyclopaedia Britannica:  Volume. 6-Macropedia :Knowledge in Depth/ 
by Encyclopaedia britannica Inc. 
 - 15th ed. 
 - Chicago :  Encyclopaedia Britannica,  1977. 
 - 1142p. 
<br/><br/> In 30 Volumes.<br/> 
<br/><br/><label>ISBN: </label>0852293151 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries
<br/><br/><label>Dewey Class. No.: </label>032  / ENC/N V.6