Biblio

J. Andrews, “Water for the forgotten people : Botswana's revolutionary well-jetting technology”, Waterlines, an international journal of water, sanitation and waste, pp. p. 28-29, 30: 2 fig., 4 photogr., 1996.

D. T. Rao, “Innovations in water extraction from aquifers using permeable capsules”, Journal of Indian Water Works Association, pp. p. 89-93 : 3 fig., 1 tab., 1980.

WHO. Regional Office for Europe -Copenhagen, DK, EURO, “Desarrollo del programa de residuos solidos : informe sobre un Grupo de Trabajo, Bilthoven, 4-6 Mayo 1971”. CEPIS (Centro Panamericano de Ingenieria Sanitaria y Ciencias del Ambiente), Lima, Peru, p. v, 33 p., 1971.

USAID -Washington, DC, US and Horsley and Witten -Sandwich, MA, US, “Source water protection: a training manual for communities in Nicaragua”. US Environmental Protection Agency (EPA), Washington, DC, USA, p. 57 p. : fig., fotographs.

L. Spinosa, Ayol, A., Baudez, J. - C., Canziani, R., Jenicek, P., Leonard, A., Rulkens, W., Xu, G., and van Dijk, L., “Sustainable and innovative solutions for sewage sludge management”, Water, pp. P. 702-717; 3 tab.; 5 fig.; 3 scheme' s; .