Third United Nations Regional Cartographic Conference for the Americas, New York, 19 February - 1 March 1985.
United Nations Regional Cartographic Conference for the Americas(3rd :1985 :New York)
United Nations.Department of Technical Co-operation for Development.
New York : United Nations,
1985, 1989.
At head of title: Department of Technical Co-operation for Development
Vol. 1, Report of the Conference. -- Vol. 2, Technical papers.
Cartography