Cita APA (7a ed.)

United Nations. Economic Commission for Europe. Statistical Division. (2011). UNECE countries in figures 2011. United Nations.

Cita Chicago Style (17a ed.)

United Nations. Economic Commission for Europe. Statistical Division. UNECE Countries in Figures 2011. New York ; Geneva: United Nations, 2011.

Cita MLA (8a ed.)

United Nations. Economic Commission for Europe. Statistical Division. UNECE Countries in Figures 2011. United Nations, 2011.