Columbia subject headings:
Harvard subject headings:
Communism--Portugal--History--20th century.
Communists--Portugal--Biography.
Cunhal, Álvaro
Partido Comunista Português--History--20th century.
Portugal--Politics and government--20th century.
Princeton subject headings:
Communism--Portugal--History--20th century.
Communists--Portugal--Biography.
Cunhal, Álvaro.
Partido Comunista Português--History--20th century.
Portugal--Politics and government--20th century.