Katzen, May <br/><br/>
Mass communication: teaching and studies at universities; a world-wide survey on the role of universities in the study of the mass mediaand mass communication 
May Katzen. 
 - París :  UNESCO,  1975. 
 - 278 p. :  fot. 
<br/><br/><label>ISBN: </label>9231011588 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>378: 659.3 (100)=20 KAT 2ejem.