Schram, Wilbur Lang  1907, <br/><br/>
The processes and effects of mass communication / 
Rev. ed. ed. by wilbur schramm and Donald f. roberts. 
 - 997 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comunicación
<br/><br/><label>LC Class. No.: </label>P90  / S34