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13
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Agricultural extension in the developing countries : a bibliography / comp. by C.A. de Vries.
- International institute for land reclamation and improvement (ILRI),
- 1968.
- Wageningen :
-
Study-tour report on the growing of fibre flax and kenaf in Egypt (April-May 1967) / J.C. Friederich.
- 861.6
- Proefstation voor de akker- en weidebouw,
- 1968.
- Wageningen :
-
Agricultural sciences and the world food supply : an international symposium, organized by the Agricultural university Wageningen, the Netherlands, on the occasion of its golden jubilee, 4-6 March 1968 / [contrib. E. de Vries...et al.].
- Veenman,
- 1968.
- Wageningen :
-
Dissertation abstracts of the Agricultural university Wageningen, the Netherlands, 1918-1968 / [ed. by D.J. Maltha and T. Eernstman].
- Veenman,
- 1968.
- Wageningen :
-
Irrigation requirements for double cropping of lowland rice in Malaysia / G.A.W. van de Goor, G. Zijlstra.
- 855.6
- Veenman,
- 1968.
- Wageningen :
-
Itaguaà : old habits and new practices in a Brazilian land settlement / B.F. Galjart.
- 878.4
- Centre for agricultural publishing and documentation,
- 1968.
- Wageningen :
-
Chemical analysis of leaves and other organs of Theobroma cacao L. as a means of diagnosing fertilizer requirements : a critical analysis of the literature (summary of a fuller report) / T. Eernstman.
- Centrum voor landbouwpublikaties en landbouwdocumentatie (Pudoc),
- 1968.
- Wageningen :
-
A pedo-geomorphological classification and map of the holocene sediments in the coastal plain of the three Guianas / R. Brinkman and L.J. Pons.
- Soil survey institute,
- 1968.
- Wageningen :
-
The soils of the wind erosion control camp area Karapinar Turkey / A.F. Groneman.
- 859.1
- Agricultural university. Department of tropical soil science,
- 1968.
- Wageningen :
-
Recherche sur cinq exploitations en transition : étude sur les hauts-plateaux de Madagascar, dans la province de Fianarantsoa / J. Koster.
- auteur,
- 1968.
- Wageningen :