World economic and financial surveys. (2013). World economic outlook April 2013: Hopes, realities, risks. International Monetary Fund.
Cita Chicago (17th ed.)World economic and financial surveys. World Economic Outlook April 2013: Hopes, Realities, Risks. Washington, D.C: International Monetary Fund, 2013.
Cita MLA (9th ed.)World economic and financial surveys. World Economic Outlook April 2013: Hopes, Realities, Risks. International Monetary Fund, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.