@book{16204,
	author = {Bartels, Robert, and American Marketing Association.},
	title = {Comparative marketing :},
	publisher = {R. D. Irwin,},
	year = {c1963},
	address = {Homewood, Ill. :},
	note = {Studies prepared by the Comparative Marketing Committee, American Marketing Association, under the chairmanship of R. Bartels.}
}