Columbia subject headings:
Monturiol, Narciso, 1819-1885.
Naval architects--Spain--History.
Naval architecture--Spain--History--19th century.
Peral y Caballero, Isaac, 1851-1895.
Santponç, Francesc, 1756-1821.
Harvard subject headings:
Princeton subject headings:
Inventors--Spain--Biography.
Monturiol, Narciso, 1819-1885.
Peral y Caballero, Isaac, 1851-1895.
Santponç, Francesc, 1756-1821.
Steam-engines--Spain--History--19th century.
Submarines (Ships)--Spain--History--19th century.