Columbia subject headings:
Harvard subject headings:
Classical literature--History and criticism--Congresses
Classical philology--History--Congresses.
Greek literature--History and criticism--Congresses
Latin literature--History and criticism--Congresses.
Princeton subject headings:
Classical literature--History and criticism--Congresses.
Classical philology--History--Congresses.
Greek literature--History and criticism--Congresses.
Latin literature--History and criticism--Congresses.