UNESCO Man and Biosphere Programme -Paris, FR, UNESCO -Paris, FR, and UNESCO International Hydrological Programme --Paris, FR, UNESCO-IHP,
“Water and health : water-related issues and problems of the humid tropics and other warm humid regions”, vol. no. 3. UNESCO International Hydrological Programme, UNESCO-IHP, Paris, France, p. 48 p. : fig., photogr., tab., 1992.