Readings in mass communication :  concepts and issues in the mass media / 
Michael Emery, Ted Curtis Smythe 
 - 4th ed. 
 - Dubuque, Iowa :  C. Brown,  1980 
 - 534 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0697041670 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Addresses, essays, lectures--United States