Al-Hassan, A. (2009). A coincident indicator of the Gulf Cooperation Council (GCC) business cycle. International Monetary Fund.
芝加哥风格引文Al-Hassan, Abdullah. A Coincident Indicator of the Gulf Cooperation Council (GCC) Business Cycle. [Washington D.C.]: International Monetary Fund, 2009.
MLA引文Al-Hassan, Abdullah. A Coincident Indicator of the Gulf Cooperation Council (GCC) Business Cycle. International Monetary Fund, 2009.
警告：这些引文格式不一定是100％准确.