1991
del'Hydrauli Mines,
« Projet hydraulique villageoise et assainissement : quatrieme rapport annuel d'execution ». Mali, Ministere des Mines, de l'Hydraulique et de l'Energie, Direction Nationale de l'Hydraulique, Bamako, Mali, p. 30 p. : tab., 1991.
del'Hydrauli Mines,
« Projet YW802 hydraulique villageoise et assainissement : plan d'action 1992 ». Mali, Ministere des Mines, de l'Hydraulique et de l'Energie, Direction Nationale de l'Hydraulique, Bamako, Mali, p. 36 p., 1991.
D. McNeill, Lium, T., Boot, M. T., et Gleditsch, M. M.,
« Proposal for continued Norwegian support to the National Rural Water Supply and Sanitation Programme Zimbabwe : report of the appraisal mission ». NORAD, Norwegian Agency for Development Cooperation, Oslo, Norway, p. 44 p. + 8 annexes: tab., fig., 1991.
M. Tafesse,
« Proposed capacity building strategy for the irrigation subsector of Ethiopia », in
A strategy for water sector capacity building : proceedings of the UNDP symposium, Delft, 3-5 June, 1991, 1991, p. P. 139-144: 2 fig.
M. J. D. Graham et Mbwette, T. S. A.,
« Protected slow sand filtration : specification of non-woven synthetic fabric layers »,
Water supply : the review journal of the International Water Supply Association, p. p. 157-164: fig., tab., 1991.
P. C. Tyagi, Ranganathan, K. R., Chakrabarti, S. P., et Basu, D. D.,
« Protection of water resources : Indian experience »,
Aqua : journal of water supply research and technology, p. p. 357-370: 9 fig., 4 tab., 1991.
A. F. Bangu et Lukoma, D. M.,
« Provision of water for communities », in
Infrastructure, environment, water and people : proceedings of the 17th WEDC Conference, United Nations Centre for Human Settlement (Habitat), Nairobi, Kenya, 19-23 August 1991, 1991, p. P. 263-266: 2 tab.
M. Vaa, Peters, R. A. A. E., M. D'Souza, K., Rosales-Escalante, E., et Weidlund, J.,
« PROWWESS (Promotion of the Role of Women in Water and Environmental Sanitation Services) : a forward-looking assessment : report of an independent team ». UNDP PROWWESS (Promotion of the Role of Women in Water Supply and Sanitation), New York, NY, USA, p. xiv, 73 p., 1991.
B. Soto et Cortez, G.,
« Proyecto - Yacupaj ». UNDP (United Nations Development Programme), Potosi, Bolivia, p. 22 p. (x 7): ill., 1991.
B. Soto et Cortez, G.,
« Proyecto Yacupaj ». UNDP (United Nations Development Programme), Potosi, Bolivia, p. 20 p. (x 5): ill., 1991.
J. Pickford,
« Public and communal latrines »,
Waterlines, an international journal of water, sanitation and waste, vol. no. 28, p. p. 15-18: ill., 1991.
M. M. Cernea,
Putting people first : sociological variables in rural development, 2nd rev.+ exp. ed.ᵉ éd. New York, NY, USA: Oxford University Press, 1991, p. xxi, 575 p. : fig., tab.
O. Guene, Tandia, C., et Toure, C. S.,
« Qualite des eaux des citernes de captage d'eau de pluie au Sahel », in
Rainwater catchment for future generations : proceedings of the 5th International Conference on Rain Water Cistern Systems, Keelung, Taiwan, 4-10 August 1991, 1991, p. P. 69-79 : 7 fig., 4 tab.
W. Affairs an Development,
« Quarterly progress report Shinyanga Region : July 1991 - September 1991 ». Tanzania, Ministry of Community Development, Women Affairs and Children, Shinyanga, Tanzania, p. i, 31 p. : 4 fig., 13 tab., 1991.
R. Barreto et Vasconez, M.,
« Que hacer frente al colera? », vol. no. 2. Centro de Investigaciones CIUDAD, Quito, Ecuador, p. 10 p.: box, fig., 1991.
M. W. Blokland, Boot, M. T., et van der Wildt, C. D.,
« Rada Water Supply and Sanitation Project Republic of Yemen : report of the fourth monitoring mission, 9-15 June 1991 ». Netherlands, Ministry of Foreign Affairs, DGIS, The Hague, The Netherlands, p. vii, 34 p., 1991.
K. C. Goh,
« Rain water harvesting in Sarawak and Brunei : progress of its implementation as part of the rural water supply development », in
Rainwater catchment for future generations : proceedings of the 5th International Conference on Rain Water Cistern Systems, Keelung, Taiwan, 4-10 August 1991, 1991, p. P. 661-675 : 4 fig., 4 tab.
J. M. Erskine,
« Rain water harvesting systems in Southern Africa », in
Rainwater catchment for future generations : proceedings of the 5th International Conference on Rain Water Cistern Systems, Keelung, Taiwan, 4-10 August 1991, 1991, p. P. 574-585.