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.
G. K. Folkard, Sutherland, J. P., et Grant, W. D.,
« Natural coagulants for small scale water treatment : potential applications »,
ASEP newsletter, p. p. 1-2, 10, 14: fig., tab., 1990.
S. C. Reed,
Natural systems for wastewater treatment, vol. FD-16. Alexandria, VA, USA: Water Pollution Control Federation, 1990, p. v, 270 p.: fig., tab.
S. Price,
« New initiatives in water supply and sanitation : project success and sustainability », vol. no.1. AusAID Australian Agency for International Development, Canberra, ACT, Australia, p. 24 p., 1990.
D. B. Warner,
« New roles for monitoring and evaluation in water supply and sanitation ». World Health Organization, Community Water Supply & Sanitation Unit, Geneva, Switzerland, p. 9 p.: fig., 1990.
« no. 165 »,
Water resources journal. 1990.
« no. 166 »,
Water resources journal. 1990.
« no. 47 (1990) »,
Echos du COTA. 1990.
« no. 48 (1990) »,
Echos du COTA. 1990.
« no. 79 »,
Bulletin de liaison du Comite Interafricain d'Etudes Hydrauliques. 1990.
« no. 81 »,
Bulletin de liaison du Comite Interafricain d'Etudes Hydrauliques. 1990.
« no. 82 »,
Bulletin de liaison du Comite Interafricain d'Etudes Hydrauliques. 1990.
R. Fothergill et Butchart, I.,
Non-book materials in libraries : a practical guide, 3rd ed.ᵉ éd. London, UK: Library Association Publishing, 1990, p. vi, 319 p.: 30 fig.
T. Triche et Schertenleib, R.,
« Non-government delivery of urban solid waste collection services », vol. no. WS-2. World Bank, Infrastructure and Urban Development Department, Washington, DC, USA, p. 3 p., 1990.