Mathai, K., Muhleisen, M., & Swiston, A. (2007). U.S. Revenue Surprises: Are Happy Days Here to Stay? International Monetary Fund.
Cita Chicago (17th ed.)Mathai, Koshy, Martin Muhleisen, i Andrew Swiston. U.S. Revenue Surprises: Are Happy Days Here to Stay? Washington, D.C.: International Monetary Fund, 2007.
Cita MLA (8th ed.)Mathai, Koshy, et al. U.S. Revenue Surprises: Are Happy Days Here to Stay? International Monetary Fund, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.