Cita APA (7th ed.)
Organisation for Economic Co-operation and Development. (1992). Poland: 1992. OECD Publishing.
Cita Chicago (17th ed.)
Organisation for Economic Co-operation and Development. Poland: 1992. Paris: OECD Publishing, 1992.
Cita MLA (9th ed.)
Organisation for Economic Co-operation and Development. Poland: 1992. OECD Publishing, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.