Cita APA (7th ed.)

Organisation for Economic Co-operation and Development. (1991). United Kingdom: 1990/1991. OECD Publishing.

Cita Chicago (17th ed.)

Organisation for Economic Co-operation and Development. United Kingdom: 1990/1991. Paris: OECD Publishing, 1991.

Cita MLA (9th ed.)

Organisation for Economic Co-operation and Development. United Kingdom: 1990/1991. OECD Publishing, 1991.