Organisation for Economic Co-operation and Development & United Nations. Economic Commission for Europe. Committee on Environmental Policy. (2002). Environmental performance reviews. OECD.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Organisation for Economic Co-operation and Development ба United Nations. Economic Commission for Europe. Committee on Environmental Policy. Environmental Performance Reviews. Paris, France: OECD, 2002.
MLA -ийн эшлэл (9 дэх хэвлэлт)Organisation for Economic Co-operation and Development ба United Nations. Economic Commission for Europe. Committee on Environmental Policy. Environmental Performance Reviews. OECD, 2002.
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