Columbia subject headings:
Boullée, Etienne Louis, 1728-1799.
Ledoux, Claude Nicolas, 1736-1806.
Lequeu, Jean-Jacques, 1757-approximately 1825.
Harvard subject headings:
Architecture, Modern--18th century--Exhibitions.
Boullée, Etienne Louis, 1728-1799--Exhibitions.
Ledoux, Claude Nicolas, 1736-1806--Exhibitions.
Lequeu, Jean-Jacques, 1757-approximately 1825--Exhibitions.
Princeton subject headings:
Boullée, Etienne Louis, 1728-1799.
Ledoux, Claude Nicolas, 1736-1806.
Lequeu, Jean-Jacques, 1757-approximately 1825.