International co-operation in cartography : 2nd United Nations Regional Cartographic Conference for the Americas : report of the Secretary-General.
1980
详细记录
符号E/1980/8
标题International co-operation in cartography : 2nd United Nations Regional Cartographic Conference for the Americas : report of the Secretary-General.
日期New York : UN, 31 Jan. 1980.
描述
4 p.