Department of economic and social affairs. (1998). World Statistics Pocketbook. United Nations.
Чикаго маягийн жагсаалтDepartment of economic and social affairs. World Statistics Pocketbook. New York: United Nations, 1998.
MLA ишлэлDepartment of economic and social affairs. World Statistics Pocketbook. United Nations, 1998.
Warning: These citations may not always be 100% accurate.