Columbia subject headings:
Harvard subject headings:
Hamburg (Germany)--Civilization--19th century.
Hamburg (Germany)--History--19th century.
Hamburg (Germany)--History.
Hamburg (Germany)--Intellectual life--19th century.
Hamburg (Germany)--Intellectual life.
Princeton subject headings:
Hamburg (Germany)--Civilization--19th century.
Hamburg (Germany)--History--19th century.
Hamburg (Germany)--Intellectual life--19th century.