Z. W. Zimconsult Harare y Oslo, N. O. Hifab Inte,
«Evaluation of rural water supply, Zimbabwe». Zimbabwe, Ministry of Development Cooperation, Oslo, Norway, p. xiii, 80 p. + 65 p. annex: fig., map, 1989.
G. Hancock,
Lords of poverty. London, UK: Mandarin Paperbacks, 1989, p. xvi, 234 p.: photogr.
L. Tjeng,
«Participatie van vrouwen in drinkwaterprojekten in Tanzania». Agricultural University Wageningen, Dept. of Civil Engineering, Wageningen, The Netherlands, p. iii, 83 p.: fig., tab., 1989.
T. Katko,
The role of cost recovery in water supply in developing countries, vol. no. 41. Tampere, Finland: Tampere University of Technology, 1989, p. ix, 246 p.: fig., tab.
I. Andersson,
«Rural water supply development in the context of economic crisis and structural adjustment»,
Waterlines, an international journal of water, sanitation and waste, pp. p. 28-30: photogr., tab., 1989.
UNICEF -New York, NY, US,
«UNICEF and the 1990s : the water and sanitation sector workplan for 1990-95». UNICEF, New York, NY, USA, p. iv, 33 p.: 17 fig., 1 tab., 1989.