1990
F. W. Odera, Karanja, J. N., y Ombai, M.,
«The approach for sustainable rural water supply in Nyanza province, Kenya», presented at the 1990-01-01, Kisumu, Kenya, 1990, p. 76 p. : fig., map, tab.
R. Semkow y Bessalel, M. M.,
«Assessment of solid waste management in Port-au-Prince, Haiti», vol. no. 292. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xi, 75 p.: fig., photogr., tab., 1990.
K. Mueller,
«Community water supply and sanitation programme Western Region : annual report 1989/90». Helvetas, Swiss Association for Development and Cooperation, Pokhara, Nepal, p. 28 p. + 22 p. ann.: tab., 1990.
T. S. Katko,
«Cost recovery in water supply in developing countries»,
International journal of water resources development, pp. p. 86-94: fig., 1990.
WHO. Regional Office for Africa -Harare, ZW, WHO / AFRO, Oslo, N. O. N. O. R. A. D. -, y Government, Rand Urban,
«Decade consultative meeting on water supply and sanitation 1981-90 : Harare, 26-30 November 1990 : proceedings and resolutions». Zimbabwe, Ministry of Local Government, Rural and Urban Development, Harare, Zimbabwe, p. ca. 170 p. : fig., map, tab., 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.
A. Anizon,
«Gestion financiere municipale en Afrique : guide pour la formation continue». World Bank, Economic Development Institute, Washington, DC, USA, p. v, 218 p.: tab., 1990.
S. S. Johnson,
«Guidelines for conducting a financial management assessment of water authorities», vol. no. 53. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. iii, 58 p.: 7 boxes, 1990.
B. Carlsson y Drake, E.,
«Handbook for village water supply operators». Botswana, Ministry of Local Government and Lands, Unified Local Government Service, Gaborone, Botswana, p. 108 p.: ill., 1990.
R. Ambat, Moahi, K. H., Neill, J. R., Grand, B., y Mchombu, K. J.,
«Improving the effectiveness of small libraries and information units : modul[e]s of training courses 1988/89/90». Germany, Education, Science and Documentation Centre, Bonn, Germany, p. ii, 201 p., 1990.