@book{27977,
	author = {FitzGerald, Jerry, and FitzGerald, Ardra F.,},
	title = {Fundamentals of systems analysis :},
	publisher = {John Wiley & Sons,},
	year = {c1987.},
	series = {Wiley series in computers and information processing systems for business},
	address = {New York :},
	edition = {3rd ed.}
}