@book{73094,
	author = {Berger, Arthur Asa,},
	title = {Media research techniques /},
	publisher = {Sage Publications,},
	year = {1998.},
	address = {Thousand Oaks :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0656/97045406-d.html}
}