APA-čujuhus (7. p.)
Okun, A. M., & Perry, G. L. Brooking Papers on Economic Activity: 1976 : [Volume] 2. The Brookings Institution.
Chicago-čujuhus (17. p.)
Okun, Arthur M., juo George L. Perry. Brooking Papers on Economic Activity: 1976 : [Volume] 2. Washington, EUA: The Brookings Institution.
MLA-čujuhus (9. p.)
Okun, Arthur M., juo George L. Perry. Brooking Papers on Economic Activity: 1976 : [Volume] 2. The Brookings Institution.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.