Columbia subject headings:
French poetry--20th century--History and criticism--Congresses.
History in literature--Congresses.
Literature and history--France--History--20th century--Congresses.
Harvard subject headings:
French poetry--20th century--History and criticism--Congresses.
History in literature--Congresses.
Literature and history--France--History--20th century--Congresses.
Princeton subject headings: