Media type: E-Article Title: Demand for Piped and Non-piped Water Supply Services: Evidence from Southwest Sri Lanka Contributor: Nauges, Céline; van den Berg, Caroline imprint: Springer Science and Business Media LLC, 2009 Published in: Environmental and Resource Economics Language: English DOI: 10.1007/s10640-008-9222-z ISSN: 0924-6460; 1573-1502 Origination: Footnote: