Foster, S., Hirata, R., Gomes, D., D'Elia, M., & Paris, M. (2012). Protecting the Quality of Public Water-Supply Sources: A Guide for Water Utilities, Municipal Authorities, and Environmental Agencies. World Bank, Washington, DC.

Foster, Stephen, Richardo Hirata, Daniel Gomes, Monica D'Elia, and Marta Paris. Protecting the Quality of Public Water-Supply Sources: A Guide for Water Utilities, Municipal Authorities, and Environmental Agencies. World Bank, Washington, DC, 2012.

Foster, Stephen, et al. Protecting the Quality of Public Water-Supply Sources: A Guide for Water Utilities, Municipal Authorities, and Environmental Agencies. World Bank, Washington, DC, 2012.