United Nations. Department of Economic and Social Affairs Statistics Division. (2004). International merchandise trade statistics: Compilers manual. United Nations.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)United Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. New York: United Nations, 2004.
MLA -ийн эшлэл (9 дэх хэвлэлт)United Nations. Department of Economic and Social Affairs Statistics Division. International Merchandise Trade Statistics: Compilers Manual. United Nations, 2004.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.