Columbia subject headings:
Portugal--History--1910-1974.
Portugal--Politics and government--1910-1974.
Sousa, Alfredo de, 1876-1963.
Harvard subject headings:
Political persecution--Portugal--History--20th century.
Politicians--Portugal--Biography
Portugal--Politics and government--1910-1974.
Sousa, Alfredo de, 1876-1963.
Princeton subject headings: