Environmental change in the West African Sahel
1984
Resources management
Aspects institutionnels de la gestion intégrée des ressources naturelles et de l'environnement
1980
Godard, Olivier |
Un espace sahélien la mare d'Oursi, Burkina Faso
1991
Claude, Jacques |
Grouzis, Michel |
Milleville, Pierre |
Background information relating to environmental guidelines for zones in gulf of Thailand requiring regulatory measures for protection of environmental resources and values
1976
Ludwig, H. F. |