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1by International Coordinating Council of the Programme on Man and the Biosphere, 5th session, Vienna, 1977Subjects: “...Tundra...”
Published 1977
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Other/Unknown Material -
2by International Coordinating Council of the Programme on Man and the Biosphere, 6th session, Paris, 1979Subjects: “...Tundra...”
Published 1979
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Other/Unknown Material