International Monetary Fund. (2009). Regional economic outlook: Sub-Saharan Africa : weathering the storm. International Monetary Fund.
芝加哥风格引文International Monetary Fund. Regional Economic Outlook: Sub-Saharan Africa : Weathering the Storm. Washington, District of Columbia: International Monetary Fund, 2009.
MLA引文International Monetary Fund. Regional Economic Outlook: Sub-Saharan Africa : Weathering the Storm. International Monetary Fund, 2009.
警告：这些引文格式不一定是100％准确.