Dunlop, John T. 1914-2003. Collective bargaining : principles and cases / John T. Dunlop, James J. Healy. - Rev. ed. - Homewood, Ill., R. D. Irwin, 1953,1956. - 511 p. ; 24 cm. - The Irwin series in economics . .Includes index LCCN: 53011601 Subjects--Topical Terms: Collective bargaining unit--United States. LC Class. No.: KF3408.Z9 / D8 1956 Dewey Class. No.: 344.730189 / DJC