Proceedings of the United Nations Scientific Conference on the Conservation and Utilization of Resources, 17 August - 6 September 1949, Lake Success, New York, Vol. I, Plenary Meetings
标题Proceedings of the United Nations Scientific Conference on the Conservation and Utilization of Resources, 17 August - 6 September 1949, Lake Success, New York, Vol. I, Plenary Meetings
获取English:E_CONF.7_7_Vol.I-EN - PDF ; Français:E_CONF.7_7_Vol.I-FR - PDF ;
