Cita APA (7th ed.)

Ball, L., Leigh, D., & Loungani, P. (2013). Okun's Law: Fit at 50? International Monetary Fund.

Cita Chicago (17th ed.)

Ball, Laurence, Daniel Leigh, i Prakash Loungani. Okun's Law: Fit at 50? Washington, D.C.: International Monetary Fund, 2013.

Cita MLA (8th ed.)

Ball, Laurence, et al. Okun's Law: Fit at 50? International Monetary Fund, 2013.