APA
UNITED NATIONS E. A. S. A. (. o. S. D., UNITED NATIONS E. A. S. A. (. o. S. D., . (1997). Standard country or Area codes for Statistical use. (Current information as at 31st August 1999). New York: United Nations.
Chicago
UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS (Dept of-) STATISTICS DIVISION, UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS (Dept of-) STATISTICS DIVISION, . 1997. Standard country or Area codes for Statistical use. (Current information as at 31st August 1999). New York: United Nations.
Harvard
UNITED NATIONS E. A. S. A. (. o. S. D., UNITED NATIONS E. A. S. A. (. o. S. D., . (1997). Standard country or Area codes for Statistical use. (Current information as at 31st August 1999). New York: United Nations.
MLA
UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS (Dept of-) STATISTICS DIVISION, UNITED NATIONS ECONOMICS AND SOCIAL AFFAIRS (Dept of-) STATISTICS DIVISION, . Standard country or Area codes for Statistical use. (Current information as at 31st August 1999). New York: United Nations. 1997.
