Nigeria : profile of agricultural potential
1989
Agriculture
Soil - geomorphic relationships in the vicinity of Niamey, Niger
1989
Wilding, L. P. |
Daniels, Ray |
The role of energy in irrigated agriculture in Niger
1987
Kohler, Daniel F. |
Integrating environmental issues into a strategy for sustainable agricultural development : the case of Mozambique
1991
Dejene, Alemneh |
Olivares, Jose |
The environmental impact of agriculture in Ethiopia
1978
Kuru, Assefa |
La Isla de Margarita y sus problemas
1949
Budowski, Gerardo |
Environment and land use in Africa
1969
Thomas, M. F. |
Whittington, G. W. |
