Columbia subject headings:
Asturias (Spain)--Politics and government--20th century.
Socialism--Spain--Asturias--History--20th century.
Harvard subject headings:
Asturias (Spain)--Politics and government--20th century.
Socialism--Spain--Asturias--History--20th century.
Princeton subject headings:
Asturias (Spain)--Politics and government--20th century.
Socialism--Spain--Asturias--History--20th century.