@book{137980,
	author = {Marshall, F. Ray. and Cartter, Allan Murray,},
	title = {Labor economics :},
	publisher = {R. D. Irwin,},
	year = {1976.},
	series = {The Irwin series in economics},
	address = {Homewood, Ill. :},
	edition = {3d ed.},
	note = {Previous editions by A. M. Cartter and F. R. Marshall.}
}