Tectonic map of South America = Mapa tectonico de America del Sur = Mapa tectônico da America do Sur.
Unesco.
Commission for the Geological Map of the World.
Brasilia :  National Department of Mineral Production [Brazil], 
1978.
Base map: AGS map of S. America (simplified).
Distributed by the Geological Society of America in its map and chart series as MC-32.
Legend and text in Eng., Sp. and Port. Text also in Fr.
Prepared and published in cooperation with Unesco and Commission for the Geological Map of the World.