APA (7th ed.) Citation

(1998). OECD economic surveys: Portugal 1998. OECD Publishing.

Chicago Style (17th ed.) Citation

OECD Economic Surveys: Portugal 1998. Paris, France: OECD Publishing, 1998.

MLA (9th ed.) Citation

OECD Economic Surveys: Portugal 1998. OECD Publishing, 1998.