Columbia subject headings:
Brazil--Foreign relations--1822-1889.
Brazil--Foreign relations--South America.
South America--Foreign relations--Brazil.
Harvard subject headings:
Brazil--Foreign relations--1822-1889.
Brazil--Foreign relations--South America.
South America--Foreign relations--Brazil.
Princeton subject headings:
Brazil--Foreign relations--1822-1889.
Brazil--Foreign relations--South America.
South America--Foreign relations--Brazil.