Soil erosion and strategic state policy : the case of Ethiopia
1986
Kuru, Assefa |
Ethiopia
Ibexes in an African environment : ecology and social system of the Walia Ibex in the Simen Mountains, Ethiopia
1981
Nievergelt, Bernhard |
The ivory markets of Africa
2000
Martin, Esmond Bradley |
Stiles, Daniel |
Participatory research for sustainable livelihoods : a guidebook for field projects
1996
Rennie, J. K. |
Singh, Naresh C. |
Elephant conservation development programme : Ethiopia
1994
Manspeizer, Ilyssa |
Lamprey, R. H. |
Des nomades entre la ville et les sables : sédentarisation dans la Corne de l'Afrique
1998
Piguet, François |
Drought follows the plow : cultivating marginal areas
1994
Glantz, Michael H. |
A survey on the flora and fauna of the Simen mountains national park, Ethiopia
1998
Nievergelt, Bernhard |
Good, Tatjana |
Güttinger, René |
Erosion, conservation and small-scale farming
1992
Hurni, Hans |
Tato, Kebede |
World soil erosion and conservation
1993
Pimentel, David |