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4
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Länderdokumentation : Thailand / H. Veenendaal.
- 855.2
- Internationale handelsmaatschappij voor meststoffen,
- 1956.
- Amsterdam :
-
Les Aït Atta : leur sédentarisation / par J.H. Jager Gerlings et D.G. Jongmans.
- Institut royal des tropiques,
- 1956.
- Amsterdam :
-
Relationship between the mineralogical composition and fertility of tropical soils / by F.A. van Baren and H. Kiel.
- 884
- Royal tropical institute. Soils department,
- 1956.
- Amsterdam :
-
Report on the 32nd international congress of Americanists at Copenhagen, August 8th-14th 1956 / by H. Feriz.
- 87
- [s.n.],
- 1956.
- Amsterdam :