Cita APA (7th ed.)

(2000). OECD statistics on international trade in services: 1989-1998. OECD.

Cita Chicago (17th ed.)

OECD Statistics on International Trade in Services: 1989-1998. Paris, France: OECD, 2000.

Cita MLA (9th ed.)

OECD Statistics on International Trade in Services: 1989-1998. OECD, 2000.

Atenció: Aquestes cites poden no estar 100% correctes.