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Abstracts of the international conference "The people's role in wetland management", Leiden, the Netherlands, 5-8 June, 1989 / comp. by M. Marchand & H.A. Udo de Haes.
- Leiden university. Centre for environmental studies,
- 1989.
- Leiden :
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West Africa review : a comprehensive listing of water management projects and an outline of their effects on wetlands / comp. by A. van Ketel, M. Marchand and W.F. Rodenburg.
- Leiden university. Centre for environmental studies,
- 1987.
- Leiden :