@book{518,
	author = {Keller, Gerald. and Duxbury Press.},
	title = {Statistics for management and economics /},
	publisher = {Thomson/Brooks/Cole,},
	year = {c2005.},
	address = {Belmont, Calif. :},
	edition = {7th. ed.},
	note = {At head of title: Duxbury.}
}