Freeman, Richard B. Labor economics / Richard B. Freeman. - 2d ed. - Englewood Cliffs, N.J. : Prentice-Hall, c1979. - viii, 200 p. : ill. ; 24 cm. - Foundation of modern economics series . Includes bibliographies and index. ISBN: 0135174821 Subjects--Topical Terms: Labor economics. Dewey Class. No.: 331