S. Lambrecht,
20 jaar in het water. Gent, Belgium: PROTOS (Agence pour la Coopération Technique Integrée), p. 180 p. : 78 boxes, 4 fig., photogr., 10 tab.
P. Calvert,
“Compost toilets : practical action, technology challenging poverty”. The Schumacher Centre for Technology and Development, Rugby, UK, p. 5 p. : 1 fig.
L. Goulet, Liem, N. Thanh, Dung, L. Kim, and Van Hao, L.,
“Evaluation of the Unicef assisted school sanitation and health education project in Vietnam : prepared for MOET and UNICEF”. UNICEF, New York, NY, USA, p. 127 p. : 3 box., 2 fig., 1 map., photogr., 23 tab.
N. Zealand. M. NZ,
“The full picture : guidelines for gender analysis”. New Zealand, Ministry of Women's Affairs, Wellington, New Zealand, p. 40 p. : 9 figures.
A. Sirry,
Local practices in urban management in secondary cities in Egypt : the case of Belbeis. Rotterdam, The Netherlands: Institute for Housing and Urban Development Studies, p. xvii, 101 p. : 42 fig., 20 tab.
“Multi-stage filtration : a practical, low-cost technology”,
Providing safe drinking water in small systems : technology, operations, and economics : proceedings of the 1st international symposium on safe drinking water in small systems : technology, operations, economics, Washington, DC, May 10-13, 1998. pp. P. 213-224 : 2 fig., 5 tab.