Columbia subject headings:
9e Arrondissement (Paris, France)--Buildings, structures, etc.
9e Arrondissement (Paris, France)--History.
Architecture, Domestic--France--Paris.
Harvard subject headings:
Architecture--France--Paris--History--19th century
City blocks--France--Paris.
Paris (France)--Buildings, structures, etc.
Princeton subject headings:
9e Arrondissement (Paris, France)--Buildings, structures, etc.
9e Arrondissement (Paris, France)--History.
Architecture, Domestic--France--Paris.