@book{2140,
	author = {Kumar, V. and Aaker, David A.},
	title = {Essentials of marketing research /},
	publisher = {John Wiley & Sons, Inc.,},
	year = {c2002.},
	address = {New York :},
	edition = {2nd ed.},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/description/wiley036/2001026850.html}
}