Marshall, Ray Labor economics : wages, employment, trade unionism, and public policy / Ray Marshall, Vernon M. Briggs and Allan G. King. - 5th ed. - Homewood, Ill. : R.D. Irwin, c1984. - xiv, 676 p. : ill. ; 24 cm. - Irwin publications in economics . Includes bibliographical references and index. ISBN: 0256029997 Subjects--Topical Terms: Labor economics. LC Class. No.: HD4901 / .M37 1984