 | The Fragile Tropics of Latin America: Sustainable Management of Changing Environments (UNU, 1995) |
 |  | Part 4 : The semi-arid north-east |
| | Changing aspects of drought-deciduous vegetation in the semiarid region of north-east Brazil |
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| The Fragile Tropics of Latin America: Sustainable Management of Changing Environments (UNU, 1995) |
| | Part 4 : The semi-arid north-east |
| | Changing aspects of drought-deciduous vegetation in the semiarid region of north-east Brazil |
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