1991
F. Ryan,
« Do-it-yourself rural toilets ». Ryan Foundation, Madras, India, p. 15 p. : ill., 1991.
S. Haukland,
« Double standards »,
World water and environmental engineering, p. p. 61-63 : tab., photogr., 1991.
A. H. Rotival,
« The Drinking Water Supply and Sanitation Decade 1981-1990 : what next? »,
Water supply : the review journal of the International Water Supply Association, p. P. FS 5 - FS 8: 3 fig., 1991.
P. P. Mowli,
« Drumstick seed as a coagulant », in
Infrastructure for low-income communities : proceedings of the 16th WEDC conference : Regional Centre for Urban and Environmental Studies (RCUES), Osmania University, Hyderabad, India, 27-31 August, 1990, 1991, p. P. 131-134: 1 fig., 2 tab.
WHO -Geneva, CH, World Health Organization,
« Eau potable, assainissement et sante en milieu rural : rapport de la deuxieme consultation du Groupe du Travail OMS Eau- Assainissement- Sante, Geneve, 9-11 Avril 1991 ». World Health Organization, Community Water Supply & Sanitation Unit, Geneva, Switzerland, p. iii, 43 p., 1991.
S. Jonsson et Rudengren, J.,
An economic appraisal of a handpump maintenance system using women mechanics, vol. no. 23. Stockholm, Sweden: Stockholm School of Economics, Dept. of International Economics and Geography, 1991, p. 43 p.
I. Serageldin, Diop, F., et Hill, K.,
« Economic crisis, structural adjustment, and health in Africa », vol. no. 766. World Bank, Population and Human Resources Department, Washington, DC, USA, p. 74 p.: 19 fig., 6 tab., 1991.
I. Montagnes,
Editing and publication : a training manual and a handbook for trainers. Manila, Philippines: International Rice Research Institute, 1991, p. 2 Vols (429, 107 p.): tab., fig., ill.
M. Ettema,
« Een enkele reis naar Bamako : structurele aanpassings programma's, gezondheid, gezondheidszorg; het Bamako-initiatief in Ghana ». Agricultural University Wageningen, Health Science Dept., Wageningen, The Netherlands, p. 74 p.: fig., photogr., tab., 1991.
R. W. Robbins, Glicker, J. L., Bloem, D. M., et Niss, B. M.,
« Effective watershed management for surface water supplies »,
Journal American Water Works Association, p. p. 34-44: 5 fig., 7 tab., photogr., 1991.
S. Kawamura,
« Effectiveness of natural polyelectrolytes in water treatment »,
Journal American Water Works Association, p. p. 88-91: 5 fig., 2 tab., 1991.
S. A. Esrey, Potash, J. B., Roberts, L., et Shiff, C.,
« Effects of improved water supply and sanitation on ascariasis, diarrhoea, dracunculiasis, hookworm infection, schistosomiasis, and trachoma »,
Bulletin of the World Health Organization, p. p. 609-621: tab., 1991.