1990
E. Nissen-Petersen en Lee, M.,
“Rock catchment dam with self-closing watertap”, vol. no. 3. ASAL Rainwater Harvesting, Nairobi, Kenya, p. 40 p. : fig., 1990.
C. J. Schofield, White, G. B., Briceno-Leon, R., Kolstrup, N., en Webb, D. J. T.,
“The role of house design in limiting vector-borne disease”, in
The poor die young : housing and health in Third World cities, 1990, pp. P. 189-212 : fig., tab.
J. van Winden,
“Rural mechanics course. 4 : Technical drawing”. TOOL, Amsterdam, The Netherlands, p. 100 p.: tech. drwngs, 1990.
PROWWESS -New York, NY, US en Water and Sanitation Program -Washington, DC, US, WSP,
“Rural sanitation in Lesotho : from pilot project to national program”, vol. no. 3. World Bank, Washington, DC, USA, p. ix, 26 p. : photogr., 1990.
M. Strauss,
“Rural sanitation in Zhejiang province, China : report of mission 2-8 April 1990”. International Reference Centre for Waste Disposal, Duebendorf, Switzerland, p. ii, 21 p.: fig., photogr., 1990.
C. S. L. Chachage, Nawe, J., en Wilfred, L. L.,
“Rural water and sanitation programme in Morogoro and Shinyanga regions : a study on women involvement in the implementation of the programme”. Dar es Salaam University Press, Dar es Salaam, Tanzania, p. x, 68 p.: tab., 1990.
P. Morgan,
Rural water supplies and sanitation. London, UK: Macmillan, 1990, p. 358 p.: ill.
UNDP -New York, NY, US,
“Safe water 2000”. UNDP (United Nations Development Programme), New York, NY, USA, p. video (13 min.): VHS, 1990.
S. Cairncross,
“Sanitation and the control of hookworm disease”, in
Hookworm disease : current status and new directions, 1990, pp. P. 304-317: 4 fig., 3 tab.
M. Yusuf en Hussain, A. M. Zakir,
“Sanitation in rural communities in Bangladesh”,
Bulletin of the World Health Organization, pp. p. 619-624: tab., 1990.
Socio-Economic Units, Kerala -Trivandrum, IN,
“Sanitation strategy”. Kerala Water Authority, Socio-Economic Units, Trivandrum, India, p. 32 p.: fig., 1990.