Columbia subject headings:
Public works--Spain--Valencia (Region)--History--19th century--Pictorial works--Exhibitions.
Valencia (Spain : Region)--Pictorial works--Exhibitions.
Valle, Lucio del, 1815-1874--Exhibitions.
Harvard subject headings:
Engineers--Spain--Biography--Exhibitions.
Isabel II Canal (Spain)--Exhibitions.
Madrid (Spain : Region)--History--Exhibitions.
Public works--Spain--History--19th century--Exhibitions.
Public works--Spain--Valencia (Region)--History--19th century--Exhibitions.
Valencia (Spain : Region)--History--Exhibitions.
Valle, Lucio del, 1815-1874--Exhibitions.
Princeton subject headings:
Public works--Spain--Valencia (Region)--History--19th century--Pictorial works--Exhibitions.
Valencia (Spain : Region)--Pictorial works--Exhibitions.
Valle, Lucio del, 1815-1874--Exhibitions.