1990
UNDP -New York, NY, US et de l'Industrie, del'Hydrauli,
« Schema directeur de mise en valeur des ressources en eau du Mali ». UNDP Department of Technical Cooperation for Development, New York, NY, USA, p. 2 vol. (281, 113 p.) : fig., tab., 1990.
Z. Ministry o ZW,
« Sector paper on water supply and sanitation in commercial farming areas », in
Decade consultative meeting on water supply and sanitation 1981-90 : Harare, 26-30 November 1990 : proceedings and resolutions, 1990, p. ca. 12 p.: tab.
Rand Urban Government,
« Sector paper on water supply and sanitation in communal lands », in
Decade consultative meeting on water supply and sanitation 1981-90 : Harare, 26-30 November 1990 : proceedings and resolutions, 1990, p. ca. 20 p.: fig., tab.
Rand Urban Government,
« Sector paper on water supply and sanitation in resettlement areas », in
Decade consultative meeting on water supply and sanitation 1981-90 : Harare, 26-30 November 1990 : proceedings and resolutions, 1990, p. Ca. 15 p.: tab.
S. C. Tsvakwi,
« Sector paper on water supply and sanitation in urban areas », in
Decade consultative meeting on water supply and sanitation 1981-90 : Harare, 26-30 November 1990 : proceedings and resolutions, 1990, p. Ca. 15 p.: tab.
Rand Urban Government,
« Sector paper on water supply and sanitation in Zimbabwe », in
Decade consultative meeting on water supply and sanitation 1981-90 : Harare, 26-30 November 1990 : proceedings and resolutions, 1990, p. 30 p.: fig. tab. maps.
K. Tayler,
« Sewerage for low-income communities in Pakistan »,
Waterlines, an international journal of water, sanitation and waste, p. p. 21-24: fig., photogr., tab., 1990.
M. Woodhouse,
« Shallow well construction techniques in Kibwezi, Kenya ». African Medical and Research Foundation (AMREF), Nairobi, Kenya, p. 9 p.: 7 fig., 1990.
E. Nissen-Petersen et Lee, M.,
« Shallow wells with bucketlift », vol. no. 4. ASAL Rainwater Harvesting, Nairobi, Kenya, p. 26 p.: fig., 1990.
N. L. D. H. V. - Amersfoort, Arnhem, N. L. Euroconsul, et Maarssenbroek, N. L. Agro Visio,
« Short-term mission to Rada water supply and sanitation project and Dhamar health improvement and waste disposal project : inventory of training institutes in the Yemen Republic ». Euroconsult, Arnhem, The Netherlands, p. 16 p. + annexes (ca. 45 p.): fig., tab., 1990.
PAHO -Washington, DC, US,
« Situacion del abastecimiento de agua potable y del saneamiento en la Region de las Americas al finalizarse el Decenio 1981-1990, y perspectivas para el futuro. Volumen 2 », in
Regional conference on water supply and sanitation : evaluation of the International Drinking Water Supply and Sanitation Decade and projections towards the year 2000, Puerto Rico, 4-6 September de 1990, 1990, p. xvi, 59 p. + 9 p. annexes.
PAHO -Washington, DC, US,
« The situation of drinking water supply and sanitation in the American region at the end of the Decade 1981-1990, and prospects for the future. Volume 1 », in
Regional conference on water supply and sanitation : evaluation of the International Drinking Water Supply and Sanitation Decade and projections towards the year 2000, Puerto Rico, 4-6 September de 1990, 1990, p. xvi, 59 p. + 9 p. annexes.
J. T. Visscher,
« Slow sand filtration : design, operation, and maintenance »,
Journal American Water Works Association, p. p. 67-71: fig., photogr., tab., 1990.
D. E. Leland et Damewood, M.,
« Slow sand filtration in small systems in Oregon »,
Journal American Water Works Association, p. p. 50-59: fig., photogr., tab., 1990.
E. Nissen-Petersen,
« Small earth dam built by animal traction », vol. no. 2. ASAL Rainwater Harvesting, Nairobi, Kenya, p. 27 p.: fig., 1990.
M. M. Zaki,
« Small scale water systems in Upper Egypt »,
Water quality bulletin, p. p. 43-45, 64: fig., 1990.
P. Wirojanagud et Smith, K.,
« Small watershed management in Thailand »,
Waterlines, an international journal of water, sanitation and waste, p. p. 2-5: photogr., tab., 1990.