United Nations Conference on Trade and Development. (1989). Trade in services: Sectoral issues. United Nations.
Style de citation Chicago (17e éd.)United Nations Conference on Trade and Development. Trade in Services: Sectoral Issues. New York: United Nations, 1989.
Style de citation MLA (8e éd.)United Nations Conference on Trade and Development. Trade in Services: Sectoral Issues. United Nations, 1989.
Attention : ces citations peuvent ne pas être correctes à 100%.