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Herrich, W.

Herrich, W., 1988. Active village participation and maintenance of improved water supply systems : report on a survey in the rural council Kas held from 1.11.1987 to 15.11.1987, Delft, The Netherlands: TNO Institute for Applied Geoscience. Available at: https://es.ircwash.org/sites/default/files/824-6987.pdf.

Fecha publicación: 01/01/1970

Herrich, W., 1987. Water resources assessment and development project in the Sudan (WADS) : presentation of a village-survey, - rational and methodology, Nyala, Sudan: Sudan, Water Resources Assessment and Development Project. Available at: https://es.ircwash.org/sites/default/files/824SDSO-4169.pdf.

Fecha publicación: 29/12/2004

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