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Coffee berry disease in Kenya / H. Vermeulen.
- 864.5
- [s.n.],
- 1979.
- Wageningen :
-
Ergonomics in tropical agriculture and forestry : proceedings of the Fifth joint ergonomic symposium organized by the Ergonomic commissions of IAAMRH, CIGR, IUFRO, Wageningen, the Netherlands, May 14-18, 1979 / ed. J.H. van Loon, F.J. Staudt and J. Zander.
- Centre for agricultural publishing and documentation,
- 1979.
- Wageningen :
-
Soil fertility aspects of the Kisii soils / by B.H. Janssen, F.C.T. Guiking, D. van der Eijk.
- 864.5
- Agricultural university,
- 1979.
- Wageningen :