Department of Economic and Social Affairs. (2006). Statistical Yearbook 2006. United Nations.
Чикаго маягийн жагсаалтDepartment of Economic and Social Affairs. Statistical Yearbook 2006. New York: United Nations, 2006.
MLA ишлэлDepartment of Economic and Social Affairs. Statistical Yearbook 2006. United Nations, 2006.
Warning: These citations may not always be 100% accurate.