Columbia subject headings:
Catalonia (Spain)--History--Autonomy and independence move.
Catalonia (Spain)--Politics and government--21st century.
Nationalism--Spain--Catalonia.
Referendum--Spain--Catalonia.
Harvard subject headings:
Catalonia (Spain)--Politics and government--21st century
Nationalism--Spain--Catalonia
Referendum--Spain--Catalonia.
Princeton subject headings:
Catalonia (Spain)--Politics and government--21st century.
Nationalism--Spain--Catalonia.
Referendum--Spain--Catalonia.