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Interventions dans les pays du Sahel: une approche écologique : l'efficacité des mesures d'intervention dans les zones du Sahel en Afrique Occidentale et leur influence sur l'environnement / J.J. Kessler et F.M.J. Ohler.
- CABO,
- 1983.
- Wageningen :
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Oil plants in Ethiopia, their taxonomy and agricultural significance / C.J.P. Seegeler.
- Centre for agricultural publishing and documentation,
- 1983.
- Wageningen :
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Improvement of wheat in Zambia using incomplete resistance against rusts / W.A.J. de Milliano.
- 865.41
- Agricultural university,
- 1983.
- Wageningen :
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The Pokomo farming system, Lower Tana, East Kenya : implications for development programmes / A. Budelman, J.A. Eisses. Primary agricultural research, farmers perform fieldtrails : experiences from the Lower Tana basin, East Kenya / A. Budelman.
- 864.5
- Agricultural university. Department of tropical crops,
- 1983.
- Wageningen :
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Considerations in breeding for improved yield and quality in arabica coffee (Coffea arabica L.) / D.J.A. Walyaro.
- Landbouwhogeschool,
- 1983.
- Wageningen :
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La forêt du Banco / J. de Koning.
- 862.24
- Veenman,
- 1983.
- Wageningen :