Libro del aņo Barsa, 1981 
/ Encyclopaedia Britannica 
 - Mexico  : Enciclopedia Britanica Publishers  , c1981. 
 - 418p.  : il. maps. retrs.  ; 80 
<br/><br/><label>ISBN: </label>968-457-018-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anuarios--- 1980
<br/><br/><label>Dewey Class. No.: </label>REF 036 ENC