@book{44671,
	author = {Birn, Robin.},
	title = {The effective use of market research :},
	publisher = {Kogan Page,},
	year = {2004.},
	series = {Market research in practice},
	address = {London ;},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0414/2004002754.html}
}