First United Nations Regional Cartographic Conference for the Americas, Panama, 8-19 March 1976.
United Nations Regional Cartographic Conference for the Americas(1st :1976 :Panama)
United Nations.Department of Economic and Social Affairs.
New York : United Nations,
1977, 1979.
At head of title: Department of Economic and Social Affairs.
Vol. 1, Report of the Conference. -- Vol. 2, Technical papers.
Cartography