B. Fawcett, Manase, G., y Mulenga, M.,
Building links for improved sanitation in poor urban settlements : recommendations from research in southern Africa. Southampton, UK: Institute of Irrigation and Development Studies (IIDS), University of Southampton, 2004, p. xii, 71 p. : boxes, fig., photogr., tab.
EPA -Washington, DC, US,
«Guidelines for water reuse». US Environmental Protection Agency (EPA), Washington, DC, USA, p. xxviii, 450 p.: fig., photogr., tab., 2004.
L. Gast, van der Krogt, S., Manhertz, H., y Moens, N.,
«The ICT roundtable process : lessons learned from facilitating ICT-enabled development». International Institute for Communication and Development, IICD, The Hague, The Netherlands, p. 48 p. : boxes, 8 tab. , 2004.
Water and Sanitation Program -Washington, DC, US, WSP,
«Report Rapport Informe 2002-2003». UNDP-World Bank Water and Sanitation Program, Washington, DC, USA, p. 128 p. : 9 boxes, 3 charts, 3 fig., 60 photogr., 2004.