Organisation for Economic Co-operation and Development. (1991). Oecd economic surveys: Portugal. OECD Publishing.
Citace podle Chicago (17th ed.)Organisation for Economic Co-operation and Development. Oecd Economic Surveys: Portugal. Paris, France: OECD Publishing, 1991.
Citace podle MLA (9th ed.)Organisation for Economic Co-operation and Development. Oecd Economic Surveys: Portugal. OECD Publishing, 1991.
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