@book{160268,
	author = {Wimmer, Roger D. and Dominick, Joseph R.},
	title = {Mass media research :},
	publisher = {Wadsworth Pub. Co., },
	year = {1991.},
	series = {Wadsworth series in mass communication},
	address = {Belmont, Calif. :},
	edition = {3rd ed.}
}