Columbia subject headings:
Argentina--Foreign economic relations--Brazil.
Argentina--Foreign economic relations--United States.
Brazil--Foreign economic relations--Argentina.
Brazil--Foreign economic relations--United States.
MERCOSUR (Organization)
Paraguayan War, 1865-1870.
Southern Cone of South America--Economic integration--History.
Southern Cone of South America--Foreign economic relations--United States.
United States--Foreign economic relations--Argentina.
United States--Foreign economic relations--Brazil.
United States--Foreign economic relations--Southern Cone of South America.
Harvard subject headings:
Argentina--Foreign economic relations--Brazil.
Argentina--Foreign economic relations--United States.
Brazil--Foreign economic relations--Argentina.
Brazil--Foreign economic relations--United States.
MERCOSUR (Organization)
Paraguayan War, 1865-1870.
Southern Cone of South America--Foreign economic relations--United States.
Southern Cone of South America--International economic integration--History.
United States--Foreign economic relations--Argentina.
United States--Foreign economic relations--Brazil.
United States--Foreign economic relations--Southern Cone of South America.
Princeton subject headings: