Columbia subject headings:
Architecture--Spain--Bilbao.
Bilbao (Spain)--Buildings, structures, etc.
Buildings--Spain--Bilbao.
City planning--Spain--Bilbao.
Harvard subject headings:
Princeton subject headings:
Architecture--Spain--Bilbao.
Bilbao (Spain)--Buildings, structures, etc.
Buildings--Spain--Bilbao.
City planning--Spain--Bilbao.