Aridity zones and dryland populations : an assessment of population levels in the world's drylands
| Formato: | Libro |
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| Lenguaje: | English |
| Publicado: |
New York, New York :
United Nations Development Programme,
2000.
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| Materias: |
| Descripción Física: | 23 páginas : ilustraciones a color, mapas color |
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