@book{12071,
	author = {O'Brien, James A., and O'Brien, James A.,},
	title = {Introduction to information systems /},
	publisher = {Irwin,},
	year = {c1994.},
	address = {Burr Ridge, Ill. :},
	edition = {7th ed.},
	note = {Rev. ed. of : Introduction to information systems in business management. 6th ed. c1991.}
}