International Monetary Fund. Real Sector Division & ebrary, Inc. (1993). A Guide to Direction of trade statistics. International Monetary Fund.
芝加哥风格引文International Monetary Fund. Real Sector Division 与 Inc ebrary. A Guide to Direction of Trade Statistics. Washington, D.C.: International Monetary Fund, 1993.
MLA引文International Monetary Fund. Real Sector Division 与 Inc ebrary. A Guide to Direction of Trade Statistics. International Monetary Fund, 1993.
警告：这些引文格式不一定是100％准确.