Columbia subject headings:
Porto (Portugal)--Civilization.
Porto (Portugal)--Intellectual life.
Portugal--Civilization--19th century.
Portugal--Civilization--20th century.
Portugal--Intellectual life--19th century.
Portugal--Intellectual life--20th century.
Renascença Portuguesa (Society)
Vida portuguesa--Indexes.
Águia--Indexes.
Harvard subject headings:
Portugal--Civilization.
Princeton subject headings: