| 
		Mass Media Research : an Introduction | 
		Roger Wimmer 
Joseph Dominick  | 
		302.23072/W I M | 
		2000 | 
	
		
		 
		 | 
		Mass Media Research : an Introduction | 
		Roger Wimmer 
Joseph Dominick  | 
		302.23072/W I M | 
		2011 | 
	
		
		 
		 | 
		Mass Media Research : an Introduction | 
		Roger Wimmer 
Joseph Dominick  | 
		302.23072/W I M | 
		1993 |