Department of Economic and Social affairs. Statistical division. (2003). Statistical yearbook: Forty-seventh issue. New York: United Nations/Nations Unies.
Chicago Stili AlıntıDepartment of Economic and Social affairs. Statistical division. Statistical Yearbook: Forty-seventh Issue. New York: United Nations/Nations Unies, 2003.
MLA AlıntıDepartment of Economic and Social affairs. Statistical division. Statistical Yearbook: Forty-seventh Issue. New York: United Nations/Nations Unies, 2003.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..