Okun, A. M. (1972). The battle against unemployment: An introduction to a current issue of public policy (Revised Edition.). W. W. Norton.
Cita Chicago (17th ed.)Okun, Arthur M. The Battle Against Unemployment: An Introduction to a Current Issue of Public Policy. Revised Edition. New York: W. W. Norton, 1972.
Cita MLA (9th ed.)Okun, Arthur M. The Battle Against Unemployment: An Introduction to a Current Issue of Public Policy. Revised Edition. W. W. Norton, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.