Columbia subject headings:
Asturias (Spain)--History--Revolution, 1934.
Communism--Spain--History--20th century.
Spain--Politics and government--1931-1939.
Harvard subject headings:
Asturias (Spain)--History--Revolution, 1934
Communism--Spain--History--20th century
Spain--Politics and government--1931-1939.
Princeton subject headings:
Asturias (Spain)--History--Revolution, 1934.
Communism--Spain--History--20th century.
Spain--Politics and government--1931-1939.