Biblio

CEMAT -Guatemala, GT, Centro Mesoamericano de Estudios sobre Tecnología Apropiada, “Primer seminario - taller nacional sobre letrinas aboneras secas familiares, Guatemala, 22-26 de junio de 1987 : memorias”. CEMAT, Centro Mesoamericano de Estudios sobre Tecnología Apropiada, Guatemala, Guatemala, p. 144 p. : fig., tab., 1987.

L. A. Selassie, Hygienic water quality : its relation to health and the testing aspects in tropical conditions, vol. no. 28. Tampere, Finland: Tampere University of Technology, 1986, p. 94 p.: fig., tab.

J. R. Hebert, “On-site water contamination in an urban slum”, Water international, pp. p. 127-132, 1983.

K. S. Manja, Maurya, M. S., and Rao, K. M., “A simple field test for the detection of faecal pollution in drinking water”, Bulletin of the World Health Organization, pp. p. 797-801, 1982.

R. E. Jackson, Aquifer contamination and protection, vol. no. 30. Paris, France: UNESCO, 1980, p. 440 p.: fig., tab.

F. R. O. E. C. D. - Paris, “Assessing microbial safety of drinking water : improving approaches and methods”. OECD, Paris, France, p. 292 p. : 11 box., 14 fig., 40 tab.