World communications :    press, radio, television, film. 

 - 4th  rev. ed. 
 - New York :    UNESCO,    1964. 
 - 380 p. :    col. ill., col. maps ;    25 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mass media.
<br/><br/><label>Dewey Class. No.: </label>302.23