1991
World Bank -Washington, DC, US,
“Environmental assessment sourcebook. Vol. I. Policies, procedures, and cross-sectoral issues”, vol. no. 139. World Bank Environment Department, Washington, DC, USA, p. xv, 227 p. : fig., tab., 1991.
A. Schellinkhout and Jakma, F. F. G. M.,
“Ervaring met anaerobe zuivering in Bucaramanga, Colombia”, presented at the 1991-06-12, Amersfoort, The Netherlands, 1991, p. 13 p. : fig., tab.
F. Gomez, M. Badel, H., and M. Badel, H.,
“Evaluación comparativa de la operación y mantenimiento de filtros lentos en arena a escala piloto que utilizan mantas sintéticas y naturales”. Universidad del Valle, Facultad de Ingenieria, Cali, Colombia, p. 95 p., 1991.
J. van der Heide, Orozco, J. G., and 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 and Cook, T.,
“Evaluating community participation”, vol. no. 98. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. iii, 23 p.: fig., 1991.
R. Middleton, Jennings, L., and 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., and 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., and 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, and 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.
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.