A. J. Acher,
«Sunlight photooxidation of organic pollutants in wastewater», in
The 12th IAWPRC Biennial International Conference : Amsterdam, 17-20 September, 1984, 1984, pp. P. 623-632 : 5 fig., 5 tab.
J. - E. Gustafsson,
Water resources development in the People's Republic of China, vol. no. 1035. Stockholm, Sweden: Royal Institute of Technology, Department of Land Improvement & Drainage, 1984, p. 188 p.: fig., ill., tab.
S. Postel,
Water : rethinking management in an age of scarcity, vol. 62. Washington, DC, USA: Worldwatch Institute, 1984, p. 65 p.: fig., tab.