Organisation for Economic Co-operation and Development. (1991). United Kingdom: 1990/1991. OECD Publishing.
Čikaški stil citiranja (17. izdanje)Organisation for Economic Co-operation and Development. United Kingdom: 1990/1991. Paris: OECD Publishing, 1991.
MLA način citiranja (9. izdanje)Organisation for Economic Co-operation and Development. United Kingdom: 1990/1991. OECD Publishing, 1991.
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