T. S. Katko,
« Cost recovery in water supply in developing countries »,
International journal of water resources development, p. p. 86-94: fig., 1990.
J. Mueller,
« Final report : part II ». Lesotho, Ministry of Interior, Chieftainship Affairs and Rural Development, Village Water Supply, Maseru, Lesotho, p. 32 p., 1990.
P. Kankaanpaa,
« The Hanoi water supply programme », in
Proceedings of the meeting of the Operation and Maintenance Working Group : Geneva, 19-22 June 1990. Volume 2. Case studies on operation and maintenance of rural and urban water supply systems, 1990, p. p. 60-73 : 3 fig.
T. A. Triche,
« Private participation in the delivery of Guinea's water supply services », vol. WPS 477. World Bank, Water and Sanitation Division, Washington, DC, USA, p. 30 p.: fig., tab., 1990.
D. T. Lauria,
« Strategy for planning periurban water systems : a case study from Guatemala », vol. no. 310. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. vi, 55 p.: fig., tab., 1990.
S. Cairncross,
« Water supply and the urban poor », in
The poor die young : housing and health in Third World cities, 1990, p. P. 109-126: fig.