APA (7th ed.) Zitazioa
(2012). OECD statistics on international trade in services. OECD.
Chicago Style (17th ed.) Zitazioa
OECD Statistics on International Trade in Services. Paris, France: OECD, 2012.
MLA (9th ed.) Zitazioa
OECD Statistics on International Trade in Services. OECD, 2012.
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