The process and effects of mass communication / 
Wilbur Schramm. 
 - Chicago :  University of Illinois,  1971. 
 - 997p. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass communication.
<br/><br/><label>LC Class. No.: </label>P90  / .S351