Wetlands in drylands : the agroecology of savana systems in Africa
1991
Scoones, Ian |
Water resources
Small tropical islands : water resources of paradises lost
1992
Galkland, Anthony C. |
An aerial resource inventory of the national park Boucle du Baoule (Mali, West Africa) 1980-1981
1983
Bie, S. de |
Kessler, Jan Joost |
Le sel de la vie
1992
Beyond Timbuktu
1988
WALIA 1990 - 1991
1991
WALIA 1986
1986