@book{13940,
	author = {Maurice, S. Charles. and Smithson, C. W.},
	title = {Managerial economics /},
	publisher = {Richard D. Irwin,},
	year = {1981.},
	series = {The Irwin publications in economics},
	address = {Homewood, Illinois. :},
	note = {Includes index.}
}