Columbia subject headings:
Barbosa, Ruy, 1849-1923--Archives--Catalogs.
Brazil--History--1889-1930--Sources--Bibliography--Catalogs.
Fundação Casa de Rui Barbosa--Catalogs.
Harvard subject headings:
Barbosa, Ruy, 1849-1923--Archives--Catalogs.
Brazil--History--1889-1930--Sources--Bibliography--Catalogs.
Fundação Casa de Rui Barbosa--Catalogs.
Princeton subject headings:
Barbosa, Ruy, 1849-1923--Archives--Catalogs.