Columbia subject headings:
Architecture--France--History--19th century.
Architecture--Philosophy.
Boileau, Louis Auguste, 1812-1896.
Eclecticism in architecture--France.
Gothic revival (Architecture)--France.
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879.
Harvard subject headings:
Architects--France.
Architecture--France--19th century.
Boileau, Louis Auguste, 1812-1896.
Building, Iron and steel--France.
Gothic revival (Architecture)--France.
Villet-le-Duc, Eugène-Emmanuel, 1814-1879.
Princeton subject headings:
Architecture--France--19th century.
Architecture--Philosophy.
Boileau, Louis Auguste, 1812-1896.
Eclecticism in architecture--France.
Gothic revival (Architecture)--France.
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879.