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Monitoring for groundwater management in (semi- )arid regions : a contribution to the International Hydrological Programme within Project M.1-1b (IHP-IV) / prepared by Henny A.J. van Lanen.
- 551.49 L267
- Van Lanen, Henny A.J.
- UNESCO,
- 1998.
- Paris :
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Soils and tropical weathering : proceedings of the Bandung symposium, 16 to 23 November 1969 / [with contrib. by J.J. Fripiat...et al.].
- UNESCO,
- 1971.
- Paris :