(2016). OECD statistics on international trade in services. OECD.
Cita Chicago (17th ed.)OECD Statistics on International Trade in Services. Paris: OECD, 2016.
Cita MLA (9th ed.)OECD Statistics on International Trade in Services. OECD, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.