Columbia subject headings:
Harvard subject headings:
Castro, Álvaro de, 1878-1928.
Portugal--Politics and government--1900-1910.
Portugal--Politics and government--1910-1926.
Prime ministers--Portugal--Biography.
Princeton subject headings:
Castro, Álvaro de, 1878-1928.
Portugal--Politics and government--1900-1910.
Portugal--Politics and government--1910-1926.
Prime ministers--Portugal--Biography.