Columbia subject headings:
Authors--Correspondence--History and criticism--Congresses.
Epistolary fiction--History and criticism--Congresses.
Letter writing--History--Congresses.
Letters--History and criticism--Congresses.
Literature and society--Congresses.
Harvard subject headings:
Authors, French--Correspondence--Congresses.
Letter writing, French--Congresses.
Princeton subject headings:
Authors--Correspondence--History and criticism--Congresses.
Epistolary fiction--History and criticism--Congresses.
Letter writing--History--Congresses.
Letters--History and criticism--Congresses.
Literature and society--Congresses.