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)
ECE Symposium on Problems Relating to Environment
Bok Engelsk 1971
Utgitt | New York : United Nations , 1971
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Omfang | VII, 386 s. : ill.
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Emner |