A guide to water and sanitation sector impact evaluation - Poulos, Christine; Pattanayak, Subhrendu K.; Jones, Kelly; World Bank.Thematic Group on Poverty Analysis, Monitoring and Impact Evaluation (Washington, D.C. World Bank, Poverty Reduction and Economic Management, Thematic Group on Poverty Analysis, Monitoring and Impact Evaluation, 2006)
"December 2006"
Keywords: Water-supply -- Developing countries -- Evaluation; Sanitary engineering -- Developing countries -- Evaluation