Press, film, radio.   

 - Paris :   Unesco,   c1950. 
 - 95p. :    ill. ;    24 cm. 
 - 1950: UNESCO publication   .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Journalism --------Periodicals.<br/>Motion pictures --------Periodicals.<br/>Radio --------Periodicals.