International encyclopedia of communications / 
Erik Barnouw, editor in chief... [et al.] 
 - New York :  Oxford University Press,  1989       
 - 4 v. 
<br/><br/><label>ISBN: </label>0195049942 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comunicación--Enciclopedias
<br/><br/><label>LC Class. No.: </label>R P 87.5 I61e 1989