1990
J. Hecq and Dugauquier, F.,
Perimetres irrigues villageois en Afrique sahelienne. Ede, The Netherlands: Centre Technique de Cooperation Agricole et Rurale, 1990, p. 234 p.: fig., photogr., tab.
J. Hecq and Dugauquier, F.,
Petite hydraulique agricole a Madagascar. Ede, The Netherlands: Centre Technique de Cooperation Agricole et Rurale, 1990, p. 74 p.: fig., photogr.
P. H. Environmen City,
“The Philippine environment in the eighties”. Philippines, Environmental Management Bureau, Quezon City, The Philippines, p. xxiii, 301 p.: 51 fig., 119 tab., 1990.
T. C. Kandpal and Matthur, S. S.,
“Physics of solar water disinfection : an introductory review”, in
Solar water disinfection : proceedings of a workshop held at the Brace Research Institute, Montreal, Que., Canada, 15-17 August 1988, 1990, pp. P. 133-154: fig., tab.
IRC International Water and Sanitation Centre, The Hague, NL, ZM, Z. Department, ZM, Z. Department, and ZM, Z. Ministry o,
“Piped supplies for small communities project, Zambia : interim report, period January 1988 - December 1989”. IRC, The Hague, The Netherlands, p. 11 p., 1990.
J. A. Hueb,
“Pipes and operation and maintenance in selected cities of Pakistan”. World Health Organization, Community Water Supply & Sanitation Unit, Geneva, Switzerland, p. 147 p.: tab., fig., photogr., 1990.
G. Ministerio GT,
“Plan nacional de abastecimiento de agua potable y saneamiento para el area rural 1991-1995”. Guatemala, Ministerio de Salud Publica y Asistencia Social, Guatemala, Guatemala, p. 124 p. + ca. 60 p. annexes: fig., tab, 1990.
D. Ey,
“Planning for Central America water and sanitation programs”, vol. no. 301. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xvi, 110 p.: fig., map, tab., 1990.
D. Ey,
“Planning for water and sanitation programs in Bolivia, Ecuador, and Peru”, vol. no. 302. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xiii, 62 p.: fig., map, tab., 1990.
D. Ey,
“Planning for water and sanitation programs in the Caribbean”, vol. no. 303. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. xv, 72 p.: fig., map, tab., 1990.
A. J. Lema,
“Pollution control legislation in Tanzania”, in
Environmental pollution and its management in Eastern Africa : proceedings of a symposium organized by the Faculty of Science, University of Dar es Salaam, Dar es Salaam, September 11-14th, 1989, 1990, pp. P. 347-354.
J. G. Janssens, Verstraete, W., Liessens, J., and Vochten, P.,
“Polyurethane prefilters to improve slow sand filtration”,
Water supply : the review journal of the International Water Supply Association, pp. p. 130-142: fig., tab., 1990.
IDRC -Ottawa, Ont., CA, International Development Research Centre and IRC International Water and Sanitation Centre, The Hague, NL,
Pompes a main : questions relatives aux programmes d'approvisionnement en eau des collectivites rurales, vol. no. 25. The Hague, The Netherlands: IRC, 1990, p. xiii, 202 p.: fig., tab., photogr.