World communications, press, radio, film :  report. 

 - Paris :  UNESCO ,  1950 
 - 220p. :  ill. ;  27 cm.  
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transport and communications<br/>Mass media<br/>Communication
<br/><br/><label>Dewey Class. No.: </label>385  / UNESCO