International Monetary Fund. (1990). Primary Commodities: Market Developments and Outlook. International Monetary Fund.
芝加哥风格引文International Monetary Fund. Primary Commodities: Market Developments and Outlook. Washington, D.C.: International Monetary Fund, 1990.
MLA引文International Monetary Fund. Primary Commodities: Market Developments and Outlook. International Monetary Fund, 1990.
警告：这些引文格式不一定是100％准确.