@book{6321,
	author = {DeFleur, Melvin Lawrence and Ball-Rokeach, Sandra J.},
	title = {Teorías de la comunicación de masas /},
	publisher = {Paidós,},
	year = {1999, 2001, 2009},
	series = {Paidós comunicación ;},
	address = {México :},
	edition = {1a ;}
}