Assessment of activities that pose a major threat to the environment : report of the Secretary-General.
Acceso
English:E_CN.17_1997_4-EN - PDF ; Español:E_CN.17_1997_4-ES - PDF ; Français:E_CN.17_1997_4-FR - PDF ; Русский:E_CN.17_1997_4-RU - PDF ; العربية:E_CN.17_1997_4-AR - PDF ; 中文:E_CN.17_1997_4-ZH - PDF ;