Shifting sands
Published in 32 languages and in Braille
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| Main Author: | |
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| Format: | article biblioteca |
| Language: | eng ara chi rus |
| Subjects: | Desertification, Grazing land, Soil degradation, Soil fertility, Soil erosion, Saline soils, Water supply, |
| Online Access: | https://unesdoc.unesco.org/ark:/48223/pf0000094255 |
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