Columbia subject headings:
Harvard subject headings:
Architecture--Spain--Catalonia--19th century--Guidebooks.
Architecture--Spain--Catalonia--20th century--Guidebooks.
Architecture--Spain--Catalonia--21st century--Guidebooks.
Architecture--Spain--Catalonia--Guidebooks.
Catalonia (Spain)--Buildings, structures, etc.--Guidebooks.
Princeton subject headings:
Architecture--Spain--Catalonia--19th century--Guidebooks.
Architecture--Spain--Catalonia--20th century--Guidebooks.
Architecture--Spain--Catalonia--21st century--Guidebooks.
Architecture--Spain--Catalonia--Guidebooks.
Catalonia (Spain)--Buildings, structures, etc.--Guidebooks.
Guidebooks.