@book{63928,
	author = {Bloom, Gordon Falk and Northrup, Herbert Roof},
	title = {Economics of labor relations},
	publisher = {R. D. Irwin},
	year = {1969.},
	address = {Homewood, Ill.},
	edition = {6th ed.},
	note = {First published in 1950 under title: Economics of labor and industrial relations.}
}