1981
L. A. Raymann,
«Experience of community development department and SATA-Helvetas with rural water supplies as self-help projects in West Cameroon», in
Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981.
P. Streeten,
«First things first : meeting basic human needs in developing countries». Oxford University Press, New York, NY, USA, p. xii, 206 p. : 5 fig., 7 tab., 1981.
B. Gay,
«Forage : techniques et materiels». Institut Technologique Dello, Verberie, France, p. 16 p.: tab., 1981.
B. G. Rogers, Ingram, W. T., Pearl, E. H., y Wetter, L. W.,
«Glossary water and wastewater control engineering». American Public Health Association (APHA), Washington, DC, USA, p. xii, 441 p., 1981.
B. P. Wolff,
«Half a nation (UNICEF in Ecuador)». UNICEF, New York, NY, USA, p. Slide series (30 slides + text, 4p.), 1981.
R. R. Bannerman,
«Hand pump maintenance programme : Ghana», in
Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981.
M. M. Riti,
Horizontal roughing filter as pretreatment with slow sand filters, vol. No. N:o 12. Tampere, Finland: Tampere University of Technology, Dept. of Civil Engineering, 1981, p. iv, 145 p. : fig. tab.
B. N. Lohani y Rajagopal, K.,
Human and animal waste management strategies in developing countries, vol. no. 4/5. Bangkok, Thailand: Environmental Sanitation Information Center, ENSIC, 1981, p. v, 89 p. : 31 fig., 38 tab.
B. F. C. I. L. S. S. - Ouagadougou, Ouagadougou, B. F. Club du Sa, y Lome, T. G. West Afric,
«Hydraulique villageoise et developpement rural dans le Sahel : rapport de synthese», vol. D (80) 111. West African Development Bank, Lome, Togo, p. 26 p., 1981.
A. Benamour,
«Hydraulique villageoise et moyens d'exhaure». Comite Interafricain d'Etudes Hydrauliques (CIEH), Ouagadougou, Burkina Faso, p. Various paging, circa 180 pp. : tab. fig. ref., 1981.
J. D. Lindstrom,
«The impact of interventions in water supply and sanitation in developing countries : proceedings of a seminar held at the Pan American Health Organization, March 25-26, 1980, Washington, DC». USAID, Washington, DC, USA, p. ix, 158 p.: fig., tab., 1981.
R. F. Carroll,
«Improving the pit latrine», in
Water and waste engineering in Africa : proceedings of the 6th WEDC Conference 24-28 March 1980 at Ahmadu Bello University, Zaria, Nigeria, 1981.