Smith, Robert S Modern labor economics : theory and public policy: instructor's manual/test bank to accompany / Robert S Smith and Robert M Whaples - 6th ed. - New York : Addison - Wesley, c1997. - vp. : 24 cm. ISBN: 0673977552 LCCN: Subjects--Topical Terms: Labor economics.Economics. LC Class. No.: HD4901 / .E34 1997