Dokumentuaren aipamena

APA (7th ed.) Zitazioa
(2001). Trade in services: Negotiating issues and approaches. OECD Publications Services.
Chicago Style (17th ed.) Zitazioa
Trade in Services: Negotiating Issues and Approaches. Paris, France: OECD Publications Services, 2001.
MLA (9th ed.) Zitazioa
Trade in Services: Negotiating Issues and Approaches. OECD Publications Services, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.