1990
Z. W. Associatio Harare,
« Marketing : how to find a market for your products? ». Association of Women's Clubs, Harare, Zimbabwe, p. video (20 min.): VHS, 1990.
P. H. J. Caplen,
« Micro hydro for an isolated rural water supply »,
Water resources journal, p. p. 34, 34a, 35: fig., tab., 1990.
M. Chaudhuri et Datta, A. K.,
« Microbial purification in slow sand filter »,
Environmental toxicity and water quality, p. p. 239-247: 2 fig., 1990.
R. Alward, Odeyemi, O., Lawand, T., et Collett, R.,
« Microbiological aspects of solar water disinfection », in
Solar water disinfection : proceedings of a workshop held at the Brace Research Institute, Montreal, Que., Canada, 15-17 August 1988, 1990, p. P. 155-183: fig., tab.
J. C. Enderman, de Lavieter, L., Cals, J. E. H. M., van Vloten, A. A., et Drion, B.,
« Milieu-thesaurus : systeem van gecontroleerde termen voor het ontsluiten van milieu-informatie ». Centrale Ingang Milieu Informatie, Bilthoven, The Netherlands, p. various paging (loose leaf), 1990.
I. D. Yayasan Di Yogyakarta, Jakarta, I. D. U. N. I. C. E. F. -, et Jakarta, I. D. National D.,
« Monitoring and evaluation of public hydrants & water terminals in North Jakarta : final report ». Yayasan Dian Desa, Yogyakarta, Indonesia, p. ca. 140 p.: fig., tab., maps, 1990.
N. L. I. L. A. C. O. - Arnhem, YE, Y. Ministry o, et DGIS, D. General fo,
« Monitoring of hydrological and meteorological characteristics in Al Bayda province 1988 ». Ilaco, Arnhem, The Netherlands, p. ii, 185 p. : 11 fig., 1990.
J. Ramakrishna, Sridhar, M. K. C., Adeniyi, J. D., et Brieger, W. R.,
« Monitoring use of monofilament nylon water filters for Guineaworm control in a rural Nigerian community »,
International quarterly of community health education, p. p. 5-18: tab., 1990.
I. N. U. N. I. C. E. F. - Ne Delhi, Delhi, I. N. Centre for, et IN, I. Rajiv Gand,
« National colloquium on role of women in water resource management : report : 16-18 August, India International Centre, New Delhi, India ». Centre for Women's Development Studies, New Delhi, India, p. 71 p., 1990.
S. Akhtar,
« National information and informatics policies in Africa : report and proceedings of a regional seminar, Addis Ababa, Ethiopia, 28 November - 1 December 1988 ». International Development Research Centre (IDRC), Ottawa, Ont, Canada, p. vii, 298 p.: fig., tab., 1990.
G. K. Folkard, Sutherland, J. P., et Grant, W. D.,
« Natural coagulants for appropriate water treatment : a novel approach »,
Waterlines, an international journal of water, sanitation and waste, p. p. 30-32: fig., photogr., 1990.