Report of the 6th United Nations Regional Cartographic Conference for Africa.
1987
详细记录
符号E/ECA/CM/13/17
标题Report of the 6th United Nations Regional Cartographic Conference for Africa.
日期[Addis Ababa] : UN, 25 Mar. 1987.
描述
23, 11 p.
备注
At head of title: Economic Commission for Africa, 8th meeting of the Technical Preparatory Committee of the Whole, Addis Ababa, Ethiopia, 13-20 April 1987.