Columbia subject headings:
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879--Criticism and interpretation.
Harvard subject headings:
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879--Criticism and interpretation.
Princeton subject headings:
Viollet-le-Duc, Eugène-Emmanuel, 1814-1879--Criticism and interpretation.