Encyclopedia americana vol. 20 

 - International edition 
 - U.S.A.  Grolier Incorporated  1989 
 - 1-776  Hb  26 cm 
<br/><br/> Navajo tp Opium 
<br/><br/><label>ISBN: </label>0-7172-0120-1 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>R031