Biblio

F. Ruiz-Mier, van Ginneken, M., and World Bank -Washington, DC, US, “Consumer cooperatives : an alternative institutional model for delivery of urban water supply and sanitation services?”, vol. no. 5. World Bank Water Supply and Sanitation Sector Board, Washington, DC, USA, p. iii, 25 p. : 7 fig., 2 tab., 2006.

World Bank -Washington, DC, US and UNDP -New York, NY, US, “UNDP-World Bank Water and Sanitation program”. UNDP-World Bank Water and Sanitation Program, Washington, DC, USA, p. video (10 min.) : VHS, Pal, 1997.