APA引文

International Monetary Fund. (1981). Direction of trade statistics. International Monetary Fund.

Chicago Style (17th ed.) Citation

International Monetary Fund. Direction of Trade Statistics. Washington, D.C.: International Monetary Fund, 1981.

MLA引文

International Monetary Fund. Direction of Trade Statistics. International Monetary Fund, 1981.

警告：這些引文格式不一定是100％准確.