Ehrenberg, Ronald G. Modern labor economics : theory and public policy / Ronald G. Ehrenberg, Robert S. Smith. - 6th ed. - Reading, Mass: Addison-Wesley, [1997]. - xx, 652 p. : ill. ; 24 cm. - The Addison-Wesley series in economics . Includes bibliographical references and indexes. ISBN: 0673980138 Subjects--Topical Terms: Labor economics Dewey Class. No.: 331