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33
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1979 Convention on Long-Range Transboundary Air Pollution and its protocols / United Nations Economic Commission for Europe.
- 341.76252 U5813
- United Nations. Economic Commission for Europe.
- United Nations,
- 1996.
- New York ; Geneva :
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Assessment of water quality in the ESCWA region / Economic and Social Council for Western Asia.
- 363.610956 A8463
- United Nations,
- 1996.
- New York :
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Industrial strategies and policies in the ESCWA region within the context of a changing international and regional environment.
- 338.956 I421s
- United Nations,
- 1996.
- New York :