Columbia subject headings:
Harvard subject headings:
Argentina
Argentina--Foreign relations--Brazil.
Brazil--Foreign relations--Argentina.
Brazil--Foreign relations--Uruguay.
Montevideo (Uruguay)--History.
Uruguay--Foreign relations--Brazil.
Princeton subject headings:
Argentina--Foreign relations--Brazil.
Brazil--Foreign relations--Argentine republic.
Brazil--Foreign relations--Uruguay.
Montevideo (Uruguay)--History.
Uruguay--Foreign relations--Brazil.