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Third European Ministerial Conference on the Environment, held in the Town Hall, Berne, Switzerland, during 19–21 September 1979
Ausems, E. J.Volume:
7
Language:
english
Journal:
Environmental Conservation
DOI:
10.1017/s0376892900006834
Date:
March, 1980
File:
PDF, 265 KB
english, 1980