Columbia subject headings:
Arquivo Nacional (Brazil)--Catalogs.
Brazil--History--Empire, 1822-1889--Manuscripts--Catalogs.
Brazil--History--Empire, 1822-1889--Sources--Bibliography--Catalogs.
Harvard subject headings:
Arquivo Nacional (Brazil)--Catalogs.
Brazil--History--Empire, 1822-1889--Manuscripts--Catalogs.
Brazil--History--Empire, 1822-1889--Sources--Bibliography--Catalogs.
Princeton subject headings:
Brazil--History--Empire, 1822-1889--Sources.
Pedro II, Emperor of Brazil, 1825-1891.