In the year 2070: thinking now about the next century has become imperative
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| Format: | Texto biblioteca |
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1971
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| Subjects: | UNEMPLOYMENT, FAMINE, POPULATION DYNAMICS, WORLD, FARMLAND, DEFORESTATION, DESERT SOILS, CHOMAGE, DYNAMIQUE DES POPULATIONS, DESEMPLEO, ESCASEZ DE ALIMENTOS, DINAMICA DE POBLACIONES, MONDE, TERRE AGRICOLE, DEBOISEMENT, SOL DE DESERT, MUNDO, TIERRAS AGRICOLAS, DEFORESTACION, SUELO DE DESIERTOS, |
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