APA (7th ed.) Zitazioa

(1999). OECD economic surveys: Portugal 1999. OECD Publishing.

Chicago Style (17th ed.) Zitazioa

OECD Economic Surveys: Portugal 1999. Paris, France: OECD Publishing, 1999.

MLA (9th ed.) Zitazioa

OECD Economic Surveys: Portugal 1999. OECD Publishing, 1999.