@book{75834,
	author = {FitzGerald, Jerry and FitzGerald, Ardra F.},
	title = {Fundamentals of systems analysis},
	publisher = {Wiley},
	year = {c1981.},
	series = {Wiley series in computers and information processing systems for business},
	address = {New York},
	edition = {3rd ed.}
}