Third United Nations regional cartographic conference for the Americas.
Third United Nations regional cartographic conference for the Americas.
- New York : United Nations, 1985.
- v. ; 28 cm.
Vol. 1 (1985; iv, 64 p.)
Cartography--United States--Congresses
Vol. 1 (1985; iv, 64 p.)
Cartography--United States--Congresses