United Nations Conference on Trade and Development. (1989). Trade in services: Sectoral issues. United Nations.
Cita Chicago Style (17a ed.)United Nations Conference on Trade and Development. Trade in Services: Sectoral Issues. New York: United Nations, 1989.
Cita MLA (8a ed.)United Nations Conference on Trade and Development. Trade in Services: Sectoral Issues. United Nations, 1989.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.