APA (7th ed.) Zitazioa

Organisation for Economic Co-operation and Development. (1974). Portugal: 1974. OECD Publishing.

Chicago Style (17th ed.) Zitazioa

Organisation for Economic Co-operation and Development. Portugal: 1974. Paris: OECD Publishing, 1974.

MLA (9th ed.) Zitazioa

Organisation for Economic Co-operation and Development. Portugal: 1974. OECD Publishing, 1974.