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Filters: Keyword is pit latrines and Author is Wehrle, K.  [Clear All Filters]
1985
K. Wehrle, Alto Beni (D.A.B.), Bolivia : sector: drinking water supply and sanitation : technical aspects, vol. no. 5. SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. 2 vol. (iv, 92, 80 p.): fig., tab., 1985.
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