United nations educational, scientific and cultural organization 

 - Paris :  ,  1975 
 - 82 p.  ;  28,5 cm. 
<br/><br/><label>Standard No.: </label>DAR008524 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bibliografías<br/>Cultura
<br/><br/><label>Universal Decimal Class. No.: </label>016:008