United Nations. Department of Economic and Social Affairs. (2013). World economic and social survey 2013: Sustainable development challenges. United Nations.
Style de citation Chicago (17e éd.)United Nations. Department of Economic and Social Affairs. World Economic and Social Survey 2013: Sustainable Development Challenges. New York: United Nations, 2013.
Style de citation MLA (8e éd.)United Nations. Department of Economic and Social Affairs. World Economic and Social Survey 2013: Sustainable Development Challenges. United Nations, 2013.
Attention : ces citations peuvent ne pas être correctes à 100%.