United Nations. (2002). Manual on statistics of international trade in services. United Nations Publications.
Style de citation Chicago (17e éd.)United Nations. Manual on Statistics of International Trade in Services. Geneva: United Nations Publications, 2002.
Style de citation MLA (8e éd.)United Nations. Manual on Statistics of International Trade in Services. United Nations Publications, 2002.
Attention : ces citations peuvent ne pas être correctes à 100%.