Não informado. (1994). World Economic and Social Survey. United Nations Publications.
Style de citation Chicago (17e éd.)Não informado. World Economic and Social Survey. New York: United Nations Publications, 1994.
Style de citation MLA (8e éd.)Não informado. World Economic and Social Survey. United Nations Publications, 1994.
Attention : ces citations peuvent ne pas être correctes à 100%.