Columbia subject headings:
Dufour, Joseph, 1754-1827--Congresses.
Joseph Dufour & Cie.--History--Congresses.
Wallpaper--France--History--18th century--Congresses.
Wallpaper--France--History--19th century--Congresses.
Harvard subject headings:
Dufour, Joseph, 1754-1827--Congresses.
Joseph Dufour & Cie.--History--Congresses.
Wallpaper--France--History--18th century--Congresses.
Wallpaper--France--History--19th century--Congresses.
Wallpaper--France--History--Congresses.
Princeton subject headings:
Dufour, Joseph, 1754-1827--Congresses.
Joseph Dufour & Cie.--History--Congresses.
Wallpaper--France--History--18th century--Congresses.
Wallpaper--France--History--19th century--Congresses.