@book{22607,
	author = {Biagi, Shirley. and Mascaró Sacristán, Pilar},
	title = {Impacto de los medios },
	publisher = {Thomson },
	year = {c2006},
	address = {México },
	edition = {7a ed.},
	note = {Traducción de: Media impact. An introduction to mass media, 4th ed.}
}