Ehrenberg,Ronald G, & Smith,Robert S. (1997). Modern labor economics: Theory and public policy (4th & 6th ed.). Addison - Wesley.
استشهاد بنمط شيكاغوEhrenberg,Ronald G, و Smith,Robert S. Modern Labor Economics: Theory and Public Policy. 4th & 6th ed. United States: Addison - Wesley, 1997.
MLA استشهادEhrenberg,Ronald G, و Smith,Robert S. Modern Labor Economics: Theory and Public Policy. 4th & 6th ed. Addison - Wesley, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.