APA
"UNITED NATIONS E. A. S. A. (. o., "UNITED NATIONS E. A. S. A. (. o., . (2007). Statistical yearbook. New: York United Nations.
Chicago
"UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Deptt of-)", "UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Deptt of-)", . 2007. Statistical yearbook. New: York United Nations.
Harvard
"UNITED NATIONS E. A. S. A. (. o., "UNITED NATIONS E. A. S. A. (. o., . (2007). Statistical yearbook. New: York United Nations.
MLA
"UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Deptt of-)", "UNITED NATIONS ECONOMIC AND SOCIAL AFFAIRS (Deptt of-)", . Statistical yearbook. New: York United Nations. 2007.