Caribbean Water and Wastewater Association -St.Joseph, TT, CWWA

Lima, P.E.C.E.P.I.S.-, AIDIS -New York, NY, US, PAHO -Washington, DC, US, UNICEF -New York, NY, US & Caribbean Water and Wastewater Association -St.Joseph, TT, CWWA, 1999. Boys and girls in action : guidebook on water and environmental health for schools and communities of Latin America and the Caribbean, Lima, Peru: CEPIS (Centro Panamericano de Ingenieria Sanitaria y Ciencias del Ambiente).