@book{139970,
	author = {Bonini, Charles P. and Hausman, Warren H.},
	title = {Quantitative analysis for management /},
	publisher = {Irwin,},
	year = {c1997.},
	address = {Chicago :},
	edition = {9th ed.},
	url = {http://www.loc.gov/catdir/bios/mh042/96036779.html}
}