Biblio

R. Rojas, “Guía para la vigilancia y control de la calidad del agua para consumo humano”. CEPIS (Centro Panamericano de Ingenieria Sanitaria y Ciencias del Ambiente), Lima, Peru, p. 336 p., 2002.

R. Rojas, Howard, G., and Bartram, J., “Groundwater quality and water supply in Lima, Peru”, in Groundwater quality, 1995, pp. P. 159-167: 2 fig., 3 tab.

R. Rojas, Lloyd, B. J., Wheeler, D., Pardon, M., Wedgwood, K., and Bartram, J., Surveillance and improvement of Peruvian drinking water supplies. Guildford, UK: University of Surrey, Robens Institute, 1991, p. xii, 54 p.: fig., tab., photogr.