(2019). OECD statistics on international trade in services. OECD Publishing.
Cita Chicago (17th ed.)OECD Statistics on International Trade in Services. Paris: OECD Publishing, 2019.
Cita MLA (9th ed.)OECD Statistics on International Trade in Services. OECD Publishing, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.