@book{70639,
	author = {Massachusetts Institute of Technology. and Hagen, Everett Einar,},
	title = {Planning economic development /},
	publisher = {R. D. Irwin,},
	year = {1963.},
	series = {Irwin series in economics.},
	address = {Homewood, Ill. :},
	note = {includes index.}
}