1989
A. Botha,
“Batch water purification : an option for small scale users”. Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa, p. 4 p. : 3 fig., 2 tab., 1989.
M. Bapat en Crook, N.,
“Behind the technical approach to slum improvement”,
Waterlines, an international journal of water, sanitation and waste, pp. p. 24-26: photogr., tab., 1989.
T. C. Leonhardt en Fry, S. K.,
“Benin rural water and sanitation project management and supervision workshop”, vol. no. 280. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. vii, 104 p.: fig., tab., 1989.
P. Roark en Fry, S.,
“Benin rural water supply and sanitation project : mid-term evaluation”, vol. no. 252. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. x, 73 p.: fig., tab., 1989.
C. A. Monteiro, Zuniga, H. P. Pino, Benicio, M. H. A., en Victora, C. G.,
“Better prospects for child survival”,
World health forum, pp. p. 222-227: tab., 1989.
Z. W. Blair Rese Harare,
“The Blair latrine builders manual”. Blair Research Laboratory, Harare, Zimbabwe, p. 24 p.: fig., 1989.
R. Opie,
“Burma's progress on Decade plans”,
World water, pp. p. 30-31: photogr., 1989.
M. Yacoob, O'Brien, D., en Henning, R.,
“CARE Indonesia : increasing community participation and developing a basic strategy for hygiene education in rural water and sanitation programs”, vol. no. 284. Water and Sanitation for Health Project (WASH), Arlington, VA, USA, p. vi, 39 p., 1989.
F. Dennis en Castleton, D.,
“Case studies in population and natural resources : Costa Rica”. IUCN - International Union for Conservation of Nature, Gland, Switzerland, p. 37 p. : photogr., 1989.
Children, Family and Youth Service Organization -Addis Ababa, ET en UNICEF -New York, NY, US,
“Children and women in Ethiopia : a situation analysis”. UNICEF, Addis Ababa, Ethiopia, p. 65 p.: fig., photogr., tab., 1989.
A. D. Patwardhan,
“Chlorination and chlorinators”, vol. no. M3. Indian Water Works Association, Bombay, India, p. viii, 67 p.: fig., tab., 1989.