1990
J. Besselink,
“IAD handpump project inventory mission : Niger, Burkina Faso, Ghana, Kenya, 25.11.89-14.01.90”. InterAction Design, Arnhem, The Netherlands, p. 18, 5 p.: fig., photogr., 1990.
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.
UN-HABITAT -Nairobi, KE, United Nations Human Settlements Programme,
“People, settlements and sustainable development”. UN-Habitat, United Nations Centre for Human Settlements, Nairobi, Kenya, p. iii, 69 p.: fig., tab., 1990.
M. Marchand en de Haes, H. A. Udo,
“The people's role in wetland management : proceedings of the International Conference Leiden, The Netherlands, June 5 - 8, 1989”. Leiden University, Centre for Environmental Studies, Leiden, The Netherlands, p. xiii, 872 p. : fig., maps, tab., 1990.
H. J. McPherson en Livingstone, A.,
“A strategy for sustainability of rural water supplies in the Sudan”, in
Proceedings of the meeting of the Operation and Maintenance Working Group : Geneva, 19-22 June 1990. Volume 2. Case studies on operation and maintenance of rural and urban water supply systems, 1990, pp. p. 17-31.
P. Roark en Yacoob, M.,
“Tech pack : steps for implementing rural water supply and sanitation projects”, vol. no. 62. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. v, 111 p.: fig., 1990.
C. Furedy,
“Urban wastes and sustainable development : a comment on the Brundtland report”, in
Maintenance of the biosphere : proceedings of the third International Conference on Environmental Future (3rd ICEF), 1990, p. Appendix IV (6 p. : 4 photogr.).
D. General fo DGIS,
“Verslag 1e studiedag drinkwater- en sanitatiesector, 8 december 1989”. Netherlands, Ministry of Foreign Affairs, DGIS, The Hague, The Netherlands, p. 26 p., 1990.
G. B. Internatio London, Newsletter, W. Industry I., en 90, A. Water Tech,
“Water in Africa - the next decade : 4th African Water Technology Conference, 20-22 February 1990, Kenyatta International Conference Centre, Nairobi, Kenya”. International Conferences and Exhibitions, S.l., p. 153 p. : fig., tab., 1990.
I. L. Nyumbu, Scott, M., Seager, M., en Wang, C.,
“Water supply and sanitation : handbook of financial principles and methods”. World Health Organization, Community Water Supply & Sanitation Unit, Geneva, Switzerland, p. iv, 100 p.: fig., 1990.
P. Roark en Brahmam, S.,
“Water supply and sanitation program design for NGOs in Haiti”, vol. no. 297. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. ix, 62 p.: fig., map, tab., 1990.
1989
P. Roark, Donnelly-Roark, P., en Yacoob, M.,
“Developing sustainable community water supply systems : key questions for African Development Foundation applicants”, vol. no. 4. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. ii, 45 p.: fig., tab., 1989.
A. Braken,
“Institutionele ontwikkeling in de drinkwater- en sanitatiesector : de case van Uttar Pradesh”. University of Nijmegen, Faculty of Policy Sciences, Nijmegen, The Netherlands, p. iii, 109, viii p.: fig., 1989.
P. Sun, Dixon, J., Jesena, C., en Aoki, T.,
“Land and water resource management in Asia : report on a seminar”, vol. no. 20. World Bank, Economic Development Institute, Washington, DC, USA, p. ix, 54 p., 1989.