1991
J. van der Heide, Orozco, J. G., et van Wasbeek, D.,
Evaluacion hidraulica de plantas potabilizadoras de filtracion rapida en Nicaragua, vol. no. 40. Delft, The Netherlands: Delft University of Technology, Department of Civil Engineering, 1991, p. 34 p. : 16 fig., 7 tab.
M. Yacoob et Cook, T.,
« Evaluating community participation », vol. no. 98. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. iii, 23 p.: fig., 1991.
M. R. Collins, Eighmy, T. T., et Malley, J. P.,
« Evaluating modifications to slow sand filters »,
Journal American Water Works Association, p. p. 62-70: 7 fig., 5 tab., photogr., 1991.
R. Middleton, Jennings, L., et Joyce, S. D.,
« Evaluation guidelines for training in water and sanitation », vol. no. 70. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. v, 38 p.: fig., 1991.
Z. W. University Harare,
Evaluation of rural water supply and sanitation projects in Zimbabwe : handbook. Harare, Zimbabwe: University of Zimbabwe, Training Centre for Water and Sanitation, 1991, p. 42 p. + 16 p. ann.
dela Rive J. Box, Ishengoma, D. M., Kimei, V., Mowo, F., et Bekker, D.,
« Evaluation of the rural water and sanitation programmes, Shinyanga and Morogoro regions ». Netherlands, Ministry of Foreign Affairs, DGIS, The Hague, The Netherlands, p. iii, 41 p.: 4 fig., 1991.
H. Christensen, Gray, K., Kleemeier, E., Loft, M., et Schaumburg-Mueller, H.,
« Evaluation report : drinking water projects in India ». DANIDA, Ministry of Foreign Affairs, Copenhagen, Denmark, p. : 4 fig., 19 tab., 1991.
I. N. H. U. D. C. O. - New Delhi, Human Settlements Management Institute -New Delhi, IN, HSMI, et Patna, I. N. Sulabh Int,
« Evaluation study of low cost sanitation programme : Madhya Pradesh ». Housing and Urban Development Corporation, New Delhi, India, p. 11 p., 1991.
A. W. Mayo,
« Experience in rainwater harvesting in Tanzania », 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. 535-546 : 1 fig., 3 tab.
L. Monjour, Henry, P., Guillemin, F., et Uwechue, N.,
« Faecal contamination of rural water supply in the Sahelian area »,
Water resources, p. p. 923-927: 2 fig., 3 tab., 1991.
K. R. Rao,
« Feasibility of developing a community based operation and maintenance system for rural water supplies », in
NAP India '91 : conference on Indo-Dutch bilateral cooperation in rural water supply and sanitation, February 25-26 1991, Lucknow, 1991, p. 9 p.
W. H. M. van Immerzeel,
« Field-irrigation training in the Peruvian Andes »,
Waterlines, an international journal of water, sanitation and waste, p. p. 5-8: photogr., 1991.
A. Rudqvist,
Fieldwork methods for consultations and popular participation, vol. no. 9. Stockholm, Sweden: Stockholm University, Development Studies Unit, 1991, p. 52 p. + 11 app.
CEHA -Amman, JO, WHO/EMRO Regional Centre for Environmental Health Activities,
« Final report of AGFUND and CEHA collaboration : five years of co-operation for CEHA Regional Centre for Environmental Health Activities, Amman, Jordan ». Centre for Environmental Health Activities (CEHA), Amman, Jordan, p. 2 x 18 p.: fig., tab., 1991.