A. Hurwitz and Balloffet, A.,
“Central American regional workshop on wastewater management : San Salvador, El Salvador, July 12-16, 1993”, vol. no. 419. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. x, 76 p., 1993.
K. Dera, Kere, B., Traore, D., Toe, C., and Brikke, F.,
“Mission de formulation sur l'equipement en systeme d'AEP des centres secondaires au Burkina Faso avec l'etude des cas de Bousse, Toma et de Bittou : rapport final”. Burkina Faso, Ministere de l'Eau, Direction de Etudes et de la Planification, Ouagadougou, Burkina Faso, p. 130 p., 1993.
D. General fo DGIS and BD, D. P. H. E. Bangladesh,
“Operational flexibility in water supply systems 18 DTP”. Programme Office, Netherlands Assisted Water Supply & Sanitation Projects, Dhaka, Bangladesh, p. 17 p.: 4 fig., 3 maps, 2 tab., 1993.
G. B. WaterAid - London,
“WaterAid : technical handbook”. WaterAid, London, UK, p. Loose-leaf (ca. 350 p.): fig., tab., 1993.