Columbia subject headings:
Cerdá, Ildefonso, 1815-1876--Exhibitions.
City planning--Spain--Barcelona--Exhibitions.
Urban renewal--Spain--Barcelona--Exhibitions.
Harvard subject headings:
Architecture--Spain--Barcelona--19th century.
Cerdá, Ildefonso, 1815-1876--Exhibitions.
City planning--Spain--Barcelona--Exhibitions.
City planning--Spain--Barcelona--History--19th century--Exhibitions.
City planning--Spain--Barcelona--History--Exhibitions.
Urbanization--Spain--Barcelona--History--19th century--Exhibitions.
Princeton subject headings:
Architecture--Spain--Barcelona--History--19th century--Exhibitions.
Cerdá, Ildefonso, 1815-1876--Exhibitions.
City planning--Spain--Barcelona--History--19th century--Exhibitions.
Urbanization--Spain--Barcelona--History--19th century--Exhibitions.