Ece symposium on problems relating to environment: proceedings and documentation of the symposium organized by the United Nations Economic Commission for Europe and held from 2 to 15 May 1971 in Prague (Czechoslovakia) with a study tour to the region of Ostrava (Czechoslovakia) and Katowice (Poland)
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| Автор: | United Nations. Economic Commission for Europe |
| Опубликовано: | New York : United Nations , 1971 |
| Физические характеристики: |
vii, 386 c.
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| Язык: | Английский |
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