Vivian, John <br/><br/>
The media of mass communication / 
John Vivian. 
 - 4th ed. 
 - Boston :  Allyn and Bacon,  1997. 
 - xviii, 526 p. :  ill. (some col.), col. map. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>020519432X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media