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Stockholm Conference

Gland, Switzerland | 31 Dec 1971 Literature

Charter for Nature

Gland, Switzerland | 31 Dec 1974 Literature

Conservation of the Himalayan region

Gland, Switzerland | 31 Dec 1977 Literature

Environmental effects of sulfur dioxide pollution

Gland, Switzerland | 31 Dec 1977 Literature

Environmental effects of acid rain and snow and other acid deposition

Gland, Switzerland | 31 Dec 1980 Literature

Mount Etna, Australia

Gland, Switzerland | 31 Dec 1987 Literature

Atmospheric pollution

Gland, Switzerland | 31 Dec 1983 Literature

The Earth Charter: Values and principles for a sustainable future (pamphlet)

San José, Costa Rica | 31 Dec 2000 Literature

Protected areas of international importance in the Alps and the Mediterranean

Gland, Switzerland | 31 Dec 1999 Literature

Conservation of mountain ecosystems in Europe

Gland, Switzerland | 31 Dec 1999 Literature