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Improved production systems as an alternative to shifting cultivation
1984
Persistent link: https://www.econbiz.de/10000632133
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Soil survey investigations for irrigation
1986 - [Repr.]
Persistent link: https://www.econbiz.de/10000020436
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The private marketing entrepreneur and rural development : case studies and commentary
Harper, Malcolm (ed.) - 1982
Persistent link: https://www.econbiz.de/10014016043
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Farm management research for small farmer development
Dillon, John L. - 1980
Persistent link: https://www.econbiz.de/10013333769