Sparks, Glenn G. <br/><br/>
Media effects research :  a basic overview / 
Glenn G. Sparks. 
 - 4th ed. 
 - Boston, MA. :  Wadsworth Cengage Learning,  c2013. 
 - xxii, 314 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9781111344450 (pbk.) 1111344450 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass media--Social aspects.<br/>Mass media--Research--Methodology.