APA (7th ed.) Zitazioa

(2016). OECD statistics on international trade in services. OECD.

Chicago Style (17th ed.) Zitazioa

OECD Statistics on International Trade in Services. Paris: OECD, 2016.

MLA (9th ed.) Zitazioa

OECD Statistics on International Trade in Services. OECD, 2016.