United Nations. Economic Commission for Europe. Committee on Environmental Policy. (2001). Environmental performance reviews. OECD.
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Chicago-čujuhus (17. p.)
United Nations. Economic Commission for Europe. Committee on Environmental Policy. Environmental Performance Reviews. Paris, France: OECD, 2001.
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MLA-čujuhus (9. p.)
United Nations. Economic Commission for Europe. Committee on Environmental Policy. Environmental Performance Reviews. OECD, 2001.
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