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Filters: Author is Keen, J.  [Clear All Filters]
2001
Keen, J., «First international rope pump policy workshop, Managua, 2001 : proceedings». SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. 69 p., 2001.
1994
Baumann, E. y Keen, J., «Afridev deep well handpump specification». SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. 64 p.: fig., 1994.