Columbia subject headings:
Architecture--France--Paris--History--19th century.
City planning--France--Paris--History--19th century.
Paris (France)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Modern--19th century--France--Paris.
Architecture--France--Paris--History--19th century
City planning--France--Paris--History--19th century.
Paris (France)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Modern--19th century--France--Paris.
City planning--France--Paris--History--19th century.
Paris (France)--Buildings, structures, etc.