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Filters: Author is Haller, L.  [Clear All Filters]
Clasen, T.F. y Haller, L., «Water quality interventions to prevent diarrhoea: cost and cost-effectiveness». World Health Organization (WHO), Geneva, Switzerland, p. iii, 33 p. : fig., tab., 2008.
Sanctuary, M., Tropp, H., y Haller, L., «Making water a part of economic development : the economic benefits of improved water management and services». Stockholm International Water Institute (SIWI), Stockholm, Sweden, p. 47 p. : 9 boxes, 4 fig., 4 tab., 2005.
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