Columbia subject headings:
Authors, French--20th century--Congresses.
Proust, Marcel, 1871-1922--Friends and associates--Congresses.
Harvard subject headings:
Authors, French--20th century--Congresses.
Novelists, French--20th century--Biography--Congresses.
Proust, Marcel, 1871-1922--Friends and associates--Congresses.
Princeton subject headings:
Authors, French--20th century--Congresses.
Proust, Marcel, 1871-1922--Friends and associates--Congresses.