Cita APA (7th ed.)
Okun, A. M., & Perry, G. L. Brooking Papers on Economic Activity: 1974 : [Volume] 1. The Brookings Institution.
Cita Chicago (17th ed.)
Okun, Arthur M., i George L. Perry. Brooking Papers on Economic Activity: 1974 : [Volume] 1. Washington, EUA: The Brookings Institution.
Cita MLA (9th ed.)
Okun, Arthur M., i George L. Perry. Brooking Papers on Economic Activity: 1974 : [Volume] 1. The Brookings Institution.
Atenció: Aquestes cites poden no estar 100% correctes.