Columbia subject headings:
Literature--Research--Congresses.
Polish literature--History and criticism--Congresses.
Polish philology--Study and teaching--Congresses.
Harvard subject headings:
Polish literature--History and criticism--Congresses.
Polish literature--Study and teaching--Congresses.
Princeton subject headings:
Literature--Research--Congresses.
Polish literature--History and criticism--Congresses.
Polish philology--Study and teaching--Congresses.