Columbia subject headings:
Harvard subject headings:
Argentina--Foreign relations--1910-1943.
Argentina--Foreign relations--Brazil.
Brazil--Foreign relations--1930-1945.
Brazil--Foreign relations--Argentina.
Elite (Social sciences)--Brazil--History--20th century.
Princeton subject headings:
Argentina--Foreign public opinion, Brazilian.
Argentina--Foreign relations--Brazil.
Brazil--Foreign relations--Argentina.
Brazil--Politics and government--1930-1945.