Não informado. (2019). Statistical Yearbook. United Nations, Department of International Economic.
Style de citation Chicago (17e éd.)Não informado. Statistical Yearbook. New York: United Nations, Department of International Economic, 2019.
Style de citation MLA (8e éd.)Não informado. Statistical Yearbook. United Nations, Department of International Economic, 2019.
Attention : ces citations peuvent ne pas être correctes à 100%.