@book{21812,
	author = {Krueger, Richard A. and Casey, Mary Anne.},
	title = {Focus groups :},
	publisher = {Sage Publications,},
	year = {c2000.},
	address = {Thousand Oaks, Calif. :},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0658/00008040-d.html}
}