United Nations. Department of Economic and Social Affairs Statistics Division. (2004). International merchandise trade statistics: Compilers manual. United Nations.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. New York: United Nations, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. United Nations, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.