1999
D. Saywell et Shaw, R.,
« Technical brief no. 61 : on-plot sanitation in urban areas »,
Waterlines, an international journal of water, sanitation and waste, p. p. 17-20 : 3 drwngs., 4 tab., 1999.
Durban water Recycling -Durban, ZA, DWR,
« Vivendi water : Durban water recycling project ». Durban Water Recycling (DWR), Durban, South Africa, p. ca. 20 p. fig., photogr., 1999.
P. Billig, Bendahmane, D., et Swindale, A.,
« Water and sanitation indicators measurement guide », vol. no. 2. Academy for Educational Development, Washington, DC, USA, p. 24 p., 1999.
T. R. Lee,
Water management in the 21st century : the allocation imperative. Cheltenham, UK: Edward Elgar, 1999, p. viii, 206 p. : 9 fig., 13 tab.
1998
K. K. N. Kumar,
« Comparative study on operation and maintenance systems of rural piped water supply schemes in Andhra Pradesh State, India », vol. no. 042. IHE (International Institute for Infrastructural, Hydraulic and Environmental Engineering), Delft, The Netherlands, p. ix, 97 p. : tab., 1998.
P. Venugopalan, Divakaran, K. K., K. Achari, P., et Rajasekharan, P.,
« Decentralisation of rural water supply schemes in Kerala : rehabilitation of schemes in Grama Panchayats : a proposal ». Kerala Water Authority, Trivandrum, India, p. 12 p., 1998.
D. D. Mara et Pearson, H. W.,
Design manual for waste stabilization ponds in Mediterranean countries. Leeds, UK: Lagoon Technology International, 1998, p. vii, 112 p. : fig., photogr., tab.
S. Kiingi,
« Environmental sanitation in Addis Ababa ». Water and Sanitation Program - East and Southern Africa, Nairobi, Kenya, p. 4 p. : 1 fig., 4 photogr., 1998.
H. Chandra,
« Evaluation of functioning of India Mark-II and India Mark-III handpumps in the state of Uttar Pradesh, India », vol. no. 038. IHE (International Institute for Infrastructural, Hydraulic and Environmental Engineering), Delft, The Netherlands, p. ix, 117 p. : fig., tab., 1998.
R. Singh,
« Evaluation of rural water supply project Uttar Pradesh, India », vol. no. 044. IHE (International Institute for Infrastructural, Hydraulic and Environmental Engineering), Delft, The Netherlands, p. xiii, 108 p. + annexes (ca. 30 p.) : 15 fig., 30 fig., 1998.
L. J. M., Wegelin, M., et G. C., G.,
« La filtracion gruesa en el tratamiento de agua de fuentes superficiales », vol. no. 4/98. SKAT (Swiss Centre for Development Cooperation in Technology and Management), St. Gallen, Switzerland, p. vi, 170 p. : fig., photogr., tab., 1998.
J. T. Visscher, J. M., L., et G. C., G.,
Multi-stage filtration : an innovative water treatment technology, vol. no. 34-E. The Hague, The Netherlands: IRC, 1998, p. xiii, 165 p. : 68 fig., 60 tab.
F. Brikke, van Beers, P., Nguenha, S., Impaia, T., et Pedro, T.,
« Operation and maintenance of rural water supply in Mozambique : final report of formulation mission ». IRC, The Hague, The Netherlands, p. vii, 48 p. + annexes (8 p.) : boxes, fig., tab., 1998.