@book{3507,
	author = {Keller, Gerald. and Warrack, Brian.},
	title = {Essentials of business statistics /},
	publisher = {Duxbury Press,},
	year = {c1994.},
	address = {Belmont, Calif. :},
	edition = {2nd ed.},
	note = {System requirements for computer disk: IBM-compatible PC; DOS. Data files in ASCII.}
}