Biblio

O. Langenegger, “Groundwater quality and handpump corrosion in [West] Africa”, vol. no. 8. UNDP-World Bank Water and Sanitation Program, Washington, DC, USA, p. xx, 143 p.: 85 fig., 23 tab., 1994.

A. Karp, Journey, W., Roche, R., Langenegger, O., Arlosoroff, S., Tschannerl, G., and Grey, D., Abastecimiento de agua a la comunidad : la opcion de la bomba manual. Washington, DC, USA: World Bank, 1988, p. xi, 208 p.: fig., tab.

A. Karp, Journey, W., Roche, R., Langenegger, O., Arlosoroff, S., Tschannerl, G., and Grey, D., Approvisionnement en eau des collectives : l'option "pompes manuelles". Washington, DC, USA: World Bank, 1988, p. xi, 204 p.: fig., tab.

A. Karp, Journey, W., Roche, R., Langenegger, O., Arlosoroff, S., Tschannerl, G., and Grey, D., Community water supply : the handpump option. Washington, DC, USA: World Bank, 1987, p. x, 202 p.: ill., tab.

O. Langenegger, “Groundwater quality : an important factor for selecting handpumps”. World Bank, Washington, DC, USA, p. 11 p.: fig., tab., 1987.

O. Langenegger, “Groundwater quality in rural areas of Western Africa”. World Bank Regional Water and Sanitation Group Western Africa, Abidjan, Ivory Coast, p. 10 p.: fig., tab., 1987.

O. Langenegger, “The impact of handpump corrosion on water quality”. World Bank Regional Water and Sanitation Group Western Africa, Abidjan, Ivory Coast, p. 10 p.: fig., tab., 1987.

O. Langenegger, “Rapport recapitulatif sur l'essai de pompes a motricite humain au Niger”. World Bank Regional Water and Sanitation Group Western Africa, Abidjan, Ivory Coast, p. ca. 140 p.: fig., tab., 1987.

A. Karp, Journey, W., Langenegger, O., Arlosoroff, S., Tschannerl, G., Grey, D., and Rosenhall, L., Handpumps testing and development : progress report on field and laboratory testing, vol. no. 29. Washington, DC, USA: World Bank, 1984, p. xviii, 399 p.: fig., tab.