Columbia subject headings:
Castilla y León (Spain)--Politics and government.
Elections--Spain--Castilla y León--History--20th century.
Harvard subject headings:
Castilla y León (Spain)--Politics and government.
Elections--Spain--Castilla y León.
Princeton subject headings:
Castilla y León (Spain)--Politics and government.
Elections--Spain--Castilla y León--History--20th century.