International Monetary Fund. Research Dept. (1990). World Economic Outlook, May 1990. International Monetary Fund.
芝加哥风格引文International Monetary Fund. Research Dept. World Economic Outlook, May 1990. Washington, D.C.: International Monetary Fund, 1990.
MLA引文International Monetary Fund. Research Dept. World Economic Outlook, May 1990. International Monetary Fund, 1990.
警告：这些引文格式不一定是100％准确.