Vox.  Diccionario enciclopedico. 

 - Barcelona  Biblograf, S.A.  1970. 
 - 5v.  illus.  25 cm. 
<br/><br/> Accompanied by supplement, Vox. Atlas geografico. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries , Spanish.<br/>Atlases, Spanish