United Nations. Department of Economic and Social Affairs Statistics Division. (2004). International merchandise trade statistics: Compilers manual. United Nations.
芝加哥风格引文United Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. New York: United Nations, 2004.
MLA引文United Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. United Nations, 2004.
警告：这些引文格式不一定是100％准确.