@book{8294,
	author = {Biagi, Shirley and García Lozano, Berenice},
	title = {Impacto de los medios },
	publisher = {Thomson },
	year = {1999},
	address = {México  },
	edition = {4a ed.},
	note = {Traducción de: Media impact. An introduction to mass media, 4th ed.}
}