Columbia subject headings:
French drama--20th century--History and criticism.
Theater--France--History--20th century.
Harvard subject headings:
French drama--20th century--History and criticism.
Theater--France--History--20th century.
Theaters--Stage-setting and scenery--France--History--20th century.
Princeton subject headings:
French drama--20th century--History and criticism.
French drama--20th century.