Biblio

G. Howard, Bartram, J., Williams, A., Overbo, A., Fuenta, D., y Geere, J., Domestic water quantity, service level and health, 2nd ed.ª ed. Geneva, Switzerland: World Health Organization (WHO), 2020, p. xi, 60 p. : 2 fig., 12 tab.

S. Cairncross, Cumming, O., Jeandron, A., Rheingans, R., Ensink, J. H. J., Brown, J., Cavill, S., Baker, S., Schmidt, W. - P., Amery, J., Bibby, S., Harvey, M., Howard, G., Mulligan, J., O’Connor, H., Ryan-Collins, L., Swann, P., Wijesekera, S., y Woolnough, D., «Water, sanitation and hygiene : evidence paper». Department for International Development, DFID, London, UK, p. 127 p.; 24 fig.; 11 tab.; 6 boxes, 2013.

G. Howard, «On-site sanitation and groundwater : the art of balancing unknown risks?», Waterlines, an international journal of water, sanitation and waste, pp. p. 2-5 : 3 photogr., 1999.