Columbia subject headings:
Architecture, Industrial--Spain--Barcelona--Pictorial works.
Barcelona (Spain)--Buildings, structures, etc.--Pictorial works.
Shipyards--Spain--Barcelona--Pictorial works.
Harvard subject headings:
Barcelona (Spain)--Buildings, structures, etc.
Naval architecture--Conservation and restoration--Spain--Barcelona.
Naval architecture--Spain--Barcelona--History.
Shipyards--Conservation and restoration--Spain--Barcelona.
Shipyards--Spain--Barcelona--History.
Princeton subject headings:
Architecture, Industrial--Spain--Barcelona--Pictorial works.
Barcelona (Spain)--Buildings, structures, etc.--Pictorial works.
Shipyards--Spain--Barcelona--Pictorial works.