Agee, Warren Kendall. <br/><br/>
Introduction to mass communications / 
Warren K. Agee, Phillip H. Ault, Edwin Emery. 
 - 6th ed. 
 - New York   Harper & Row   c1979. 
 - xiii, 475 p.   ill.   23 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [421]-457. 
<br/><br/><label>ISBN: </label>0060401729 
<br/><br/><label>Source: </label>451340 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medios de comunicación de masas.
<br/><br/><label>LC Class. No.: </label>P90  / .A33 1976