World Resources Institute (WRI), Department of Resource Surveys and Remote Sensing (DRSRS) Ministry of Environment and Natural Resources, and Central Bureau of Statistics (CBS) Ministry of Planning and National Development. 2007. Chapter 3: Water. Pages 24-41 in Nature’s Benefits in Kenya: An Atlas of Ecosystems and Human Well-Being. Washington, DC: WRI. http://pdf.wri.org/kenya_atlas_06_water_ch3_150.pdf.