Columbia subject headings:
Architectural photography--Spain--Barcelona.
Barcelona (Spain)--Buildings, structures, etc.--Pictorial works.
Barcelona (Spain)--Pictorial works.
Harvard subject headings:
Architectural photography--Spain--Barcelona.
Barcelona (Spain)--Buildings, structures, etc.--Pictorial works.
Barcelona (Spain)--Pictorial works.
Princeton subject headings:
Architectural photography--Spain--Barcelona.
Barcelona (Spain)--Buildings, structures, etc.--Pictorial works.
Barcelona (Spain)--Pictorial works.