Dryland management : the desertification problem
1990
Nelson, Ridley |
Environmental surveys
Desert ecology of Abu Dhabi : a review and recent studies
1996
Osborne, Patrick E. |
Atlas du Parc national de la Vanoise
1998
Morel, Stéphane |
Baron, Emmanuel |
Claudin, Jacques |
Jordan country study on biological diversity
1998
Hatough-Bouran, Alia M. |
Duwayri, Mahmud A. |
Disi, Ahmad M. |
El desafio salvadoreño : de la paz al desarrollo sostenible
1997
Panayotou, Theodore |
Faris, Robert |
Restrepo, Carlos |