1991
United Nations Capital Development Fund -New York, NY, US, UNCDF,
“Activities of the United Nations capital development fund in the water supply and sanitation sector : prepared for the Collaborative Council Global Forum, Oslo, Norway; 18-20 September 1991”. United Nations Capital Development Fund, UNCDF, New York, NY, USA, p. 35 p.: tab., 1991.
V. Navarrete, Perez, S., and Garcia, J.,
“Adiestramiento para la prevencion y control de las enfermedades gastrointestinales en el sector agua : habilitacion de un laboratorio de emergencia”, vol. no. 5. Instituto Mexicano de Tecnologia del Agua, Mexico City, Mexico, p. 42 p. : fig., photogr., 1991.
E. Ramos, Castellenos, O., and Jimenez, B.,
“Adiestramiento para la prevencion y control de las enfermedades gastrointestinales en el sector agua : medidas practicas de ingenieria ambiental para combatir enfermedades diarreicas”, vol. no. 3. Instituto Mexicano de Tecnologia del Agua, Mexico City, Mexico, p. 42 p. : 6 fig., 3 tab., 1991.
G. Naber,
An agricultural library : its start and management, vol. no. 50. Wageningen, The Netherlands: International Institute for Land Reclamation and Improvement, 1991, p. 123 p.: ill., tab.
M. Nunez,
“Agua entubada para consumo humano, con participacion comunitaria en areas rurales pobres”, in
International Seminar on Efficient Water Use : proceedings = Seminario Internacional sobre el Uso Eficiente del Agua : ponencias, 1991, pp. p. 866-873.
P. E. C. E. P. I. S. - Lima, Lima, P. E. U. N. I. C. E. F. -, and PE, P. Ministerio,
“Agua y salud”. CEPIS (Centro Panamericano de Ingenieria Sanitaria y Ciencias del Ambiente), Lima, Peru, p. 17 p.: ill., 1991.
L. Mesfin,
“Applicability of artificial recharge of groundwater in Mojo, Ethiopia”, vol. no. 47. Tampere University of Technology, Institute of Water and Environmental Engineeri, Tampere, Finland, p. : 20 fig., 23 tab., 1991.
S. Vigneswaran, Vigneswaran, B., and Ben Aim, R.,
Application of microfiltration for water and wastewater treatment, vol. no. 31. Bangkok, Thailand: Environmental Sanitation Information Center, ENSIC, 1991, p. 184 p.: fig., tab.
R. Franceys, Barker, P., and Akosa, G.,
“Appraisal and evaluation : a new approach”, 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, pp. P. 127-130: 2 tab.