Columbia subject headings:
Harvard subject headings:
Architecture--Spain--Madrid--Guidebooks.
Buildings--Spain--Madrid--Guidebooks.
Madrid (Spain)--Buildings, structures, etc.--Guidebooks.
Madrid (Spain)--Guidebooks.
Princeton subject headings:
Architecture--Spain--Madrid--Guidebooks.
Buildings--Spain--Madrid--Guidebooks.
Guidebooks.
Madrid (Spain)--Buildings, structures, etc.--Guidebooks.
Madrid (Spain)--Guidebooks.