The encyclopedia Americana :   international edition 

 - 776 pages :   illustrations ;   26 cm 
<br/><br/> vol. 20 (Navajo to Opium) 
<br/><br/><label>ISBN: </label>0717201252 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries
<br/><br/><label>Dewey Class. No.: </label>032.02