Columbia subject headings:
Object (Aesthetics)--History--20th century.
Object (Aesthetics)--History--21st century.
Theaters--Stage-setting and scenery--France--History--20th century.
Theaters--Stage-setting and scenery--France--History--21st century.
Harvard subject headings:
Theater--France--History--20th century.
Theaters--Stage-setting and scenery--France--History--20th century.
Princeton subject headings: