Columbia subject headings:
Brazil--Foreign relations--Bibliography.
Brazil--Foreign relations--Sources--Bibliography.
Brazil--History--Sources.
Brazil. Ministério das Relações Exteriores. Arquivo Histórico.
Harvard subject headings:
Brazil--Foreign relations--Bibliography--History--Sources.
Brazil--History--Sources.
Brazil. Ministério das Relações Exteriores. Arquivo.
Princeton subject headings:
Brazil--Foreign relations--Bibliography--History--Sources.
Brazil--History--Sources.
Brazil. Ministério das Relações Exteriores. Arquivo.