International Monetary Fund. Statistics Dept. (2011). International Financial Statistics, September, 2011. International Monetary Fund.
Cita Chicago (17th ed.)International Monetary Fund. Statistics Dept. International Financial Statistics, September, 2011. Washington, D.C.: International Monetary Fund, 2011.
Cita MLA (8th ed.)International Monetary Fund. Statistics Dept. International Financial Statistics, September, 2011. International Monetary Fund, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.