Columbia subject headings:
Communists--Spain--Biography.
Partido Comunista de España--Biography.
Statesmen--Spain--Biography.
Harvard subject headings:
Communists--Spain--Biography
Partido Comunista de España--History--20th century.
Spain--Politics and government--20th century.
Princeton subject headings:
Communists--Spain--Biography.
Partido Comunista de España--History--20th century.
Spain--Politics and government--20th century.