United Nations. Department of Economic and Social Affairs Statistics Division. (2004). International merchandise trade statistics: Compilers manual. United Nations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. New York: United Nations, 2004.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. United Nations, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.