Department of Economic and Social Affairs. (2001). Yearbook Industrial Commodity Statistics 1999. United Nations.
Чикаго маягийн жагсаалтDepartment of Economic and Social Affairs. Yearbook Industrial Commodity Statistics 1999. New York: United Nations, 2001.
MLA ишлэлDepartment of Economic and Social Affairs. Yearbook Industrial Commodity Statistics 1999. United Nations, 2001.
Warning: These citations may not always be 100% accurate.