A. Montangero y Strauss, M.,
«Gestion des boues de vidange». Swiss Federal Institute for Environmental Science and Technology (EAWAG), Duebendorf, Switzerland, p. 65 p. fig., tabs., 2001.
P. Hartmann,
Iron and manganese removal : simple methods for drinking water, vol. no. 1. St. Gallen, Switzerland: SKAT (Swiss Centre for Development Cooperation in Technology and Management), 2001, p. 46 p. : 11 fig., photogr., 2 tab.
N. I. Bombas de Managua, Accra, G. H. Community, y Water and Sanitation Program -Washington, DC, US, WSP,
«Rope pump : private sector technology transfer from Nicaragua to Ghana», vol. no. 5. Water and Sanitation Program, WSP, Washington, DC, USA, p. 5 p. : boxes, photogr., 2001.
UN-HABITAT -Nairobi, KE, United Nations Human Settlements Programme,
«Water education in African cities : report of an expert group meeting : Johannesburg, South Africa, 30 April - 2 May 2001». UN-Habitat, United Nations Centre for Human Settlements, Nairobi, Kenya, p. vi, 243 p. :fig., tab., 2001.
ISODEC -Accra, GH, Integrated Social Development Centre y Global Challenge Initiative -Takoma Park, MD, US, GCI,
«Water privatization in Ghana? : an analysis of government and World Bank policies». Integrated Social Development Centre (ISODEC), Accra, Ghana, p. 20 p. : 4 boxes, 2001.