1989
P. Ministerio PE,
« Manual de operacion y mantenimiento de sistemas de agua potable y letrinas en el medio rural. ». Peru, Ministerio de Salud, Division de Saneamiento Basico Rural, Lima, Peru, p. 65 p. : technical drawings, charts., 1989.
W. van Leeuwen,
« M.C.K. water programme ». SNV Netherlands Development Organization, The Hague, The Netherlands, p. 17 p.: tab., 1989.
Zonta International -Chicago, IL, US, Development, Yand Sports, et Domingo, D. O. I. N. S. T. R. A. W. - S.,
« National workshop on women, water supply and sanitation, Lagos, Nigeria, 10-16 May 1989 ». United Nations International Research and Training Institute for the Advancement of Wpmen (INSTRAW), Santo Domingo, Dominican Republic, p. 90 p., 1989.
N. Young,
Nicaragua : testing the water : from village wells to national plan. London, UK: Catholic Institute for International Relations, 1989, p. 60 p.: fig., photogr., tab.
J. Hodgkin,
« Operation and maintenance of rural water supplies in the Yemen Arab Republic », vol. no. 259. Water and Sanitation for Health Project (WASH), Washington, DC, USA, p. viii, 103 p.: fig., ill., tab., 1989.
N. L. I. W. A. C. O. - Rotterdam, NG, A. (State). M., et World Bank. Regional Water and Sanitation Group for West and Central Africa -Abidjan, CI, Groupe Regional Eau et Assainissement Afrique de l'Ouest / GREA-AO,
« Plans for development of rural water supply and sanitation in Anambra State ». IWACO, Rotterdam, The Netherlands, p. 2 vol. (154, 107 p.): fig., tab., 1989.
WHO -Geneva, CH, World Health Organization et Stockholm, S. E. S. I. D. A. -,
« Pooling resources beyond borders : how seven small countries in Central America improved operation and maintenance of their water supply sectors by joining forces », vol. no. 7. World Health Organization, Community Water Supply & Sanitation Unit, Geneva, Switzerland, p. 24 p.: ill., 1989.
L. (City). Ur ZM, Bonn, D. E. German Cen, Lusaka, Z. M. Lusaka Wat, et Eschborn, D. E. G. T. Z. -,
« Report on International Seminar "Operation and Maintenance of Urban Water Supply Schemes" : Lusaka, Zambia, May 8-13, 1989 ». German Centre for International Training in Water and Waste Management, Bonn, Germany, p. 43 p., 1989.
G. Ministerio GT et UNICEF -New York, NY, US,
« Saneamiento basico rural en Guatemala ». Guatemala, Ministerio de Salud Publica y Asistencia Social, Guatemala, Guatemala, p. 50 p.: tab., 1989.
H. J. McPherson, Livingstone, A., Mohamed, Y. A., et Liao, M.,
« Sustainable operation and maintenance of rural water supplies in the Sudan ». World Health Organization, Community Water Supply & Sanitation Unit, Geneva, Switzerland, p. iv, 221 p.: fig., tab, 1989.
I. N. National I. Delhi,
« Upgrading municipal services : norms and financial implications », vol. no. 38. National Institute of Urban Affairs, New Delhi, India, p. 2 vol. (xix, 163, iii, 207 p.): tab., 1989.
M. Yhdego,
« Waste stabilization ponds in Tanzania »,
Waterlines, an international journal of water, sanitation and waste, p. p. 10-12: photogr., tab., 1989.
M. Mujwahuzi, McMahon, G., Choe, K., et Whittington, D.,
« Willingness to pay for water in Newala district, Tanzania : strategies for cost recovery », vol. no. 246. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. x, 205 p.: fig., tab., 1989.
J. van Meel et Smulders, P.,
Wind pumping : a handbook, vol. no. 101. Washington, DC, USA: World Bank, 1989, p. xx, 273 p.: fig., photogr., tab.