Não informado. (2019). Statistical Yearbook. United Nations, Department of International Economic.
Citace podle Chicago (17th ed.)Não informado. Statistical Yearbook. New York: United Nations, Department of International Economic, 2019.
Citace podle MLA (8th ed.)Não informado. Statistical Yearbook. United Nations, Department of International Economic, 2019.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..