Columbia subject headings:
Harvard subject headings:
Costa, Afonso, 1871-1937.
Portugal--History--1910-1974.
Portugal--Politics and government--1910-1926.
Republicanism--Portugal--History.
Princeton subject headings:
Costa, Afonso, 1871-1937.
Portugal--Politics and government--1910-1926.
Statesmen--Portugal--Biography.