@book{44670,
	author = {Aaker, David A. and Kumar, V.,},
	title = {Marketing research /},
	publisher = {Wiley,},
	year = {c2007.},
	address = {Hoboken, NJ :},
	edition = {9th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0814/2006046457-b.html}
}