TitleComprehensive assessment of the freshwater resources of the world : report of the Secretary-General.
AccessEnglish:E_CN.17_1997_9-EN - PDF ; Español:E_CN.17_1997_9-ES - PDF ; Français:E_CN.17_1997_9-FR - PDF ; Русский:E_CN.17_1997_9-RU - PDF ; العربية:E_CN.17_1997_9-AR - PDF ; 中文:E_CN.17_1997_9-ZH - PDF ;