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Citace podle Chicago (17th ed.)Organisation for Economic Co-operation and Development a ProQuest (Firm). Policies for a Better Environment: Progress in Eastern Europe, Caucasus and Central Asia. Paris: OECD, 2007.
Citace podle MLA (9th ed.)Organisation for Economic Co-operation and Development a ProQuest (Firm). Policies for a Better Environment: Progress in Eastern Europe, Caucasus and Central Asia. OECD, 2007.
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