@book{61249,
	author = {Due, John F. and Clower, Robert W.,},
	title = {Intermediate economic analysis :},
	publisher = {R. D. Irwin},
	year = {1947},
	series = {The Irwin series in economics},
	address = {Homewood :},
	edition = {4th ed.},
	note = {Includes index.}
}