United Nations. Economic Commission for Europe. Statistical Division. (2011). UNECE countries in figures 2011. United Nations.
Style de citation Chicago (17e éd.)United Nations. Economic Commission for Europe. Statistical Division. UNECE Countries in Figures 2011. New York ; Geneva: United Nations, 2011.
Style de citation MLA (8e éd.)United Nations. Economic Commission for Europe. Statistical Division. UNECE Countries in Figures 2011. United Nations, 2011.
Attention : ces citations peuvent ne pas être correctes à 100%.