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1
Restoring the quality of our environment : report of the Environmental Pollution Panel, President's Science Advisory Committee.
Udgivet 1965
Government Document Bog
2
Environment and economics : results of the International Conference on Environment and Economics, 18th-21st June, 1984.
Udgivet 1985
Government Document Conference Proceeding Bog
3
World conservation strategy : living resource conservation for sustainable development /
Udgivet 1980
Government Document Bog
4
Saving biological diversity : economic incentives.
Udgivet 1996
Government Document Bog
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