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Agroforestry : proceedings of the 50th "Tropische landbouwdag" (symposium on tropical agriculture), 1978, held in Amsterdam / [contrib. by K.F.S. King...et al.].
- Royal tropical institute. Department of agricultural research,
- 1979.
- Amsterdam :
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Symposium on rural development in the next decade : June 14, 1979 / ed. by J.G.A. Admiraal and C.D. Tuinenburg.
- Royal tropical institute. Department of agricultural research,
- 1979.
- Amsterdam :