The revival of soil conservation in Kenya : Carl Gösta Wenner's personal notes 1974-1981
1992
Eriksson, Arne |
Soil conservation
Public policy and legislation in environmental management : terracing in Nyarurembo, Uganda
1992
Tukahirwa, Eldad M. |
Veit, Peter G. |
Environment and development in Africa : selected case studies
1991
Blackwell, Jonathan |
Goodwillie, Roger N. |
Webb, Richard |
Options for soil and farmer friendly agriculture in the highlands of northern Thailand
1998
van Keer, Koen |
Comtois, J. D. |
Turkelboom, Francis |
Ongprasert, Somchai |
Erosion, conservation and small-scale farming
1992
Hurni, Hans |
Tato, Kebede |
World soil erosion and conservation
1993
Pimentel, David |
Soils and the environment : an introduction
1993
Wild, Alan |
African mountains and highlands : problems and perspectives
1990
Messerli, Bruno |
Hurni, Hans |
Landcare : communities shaping the land and the future
1994
Campbell, Andrew C. |
Siepen, Greg |