Columbia subject headings:
Criticism--Poland--History--19th century--Congresses.
Polish literature--19th century--History and criticism--Congresses.
Harvard subject headings:
Criticism--Poland--History--19th century--Congresses.
Criticism--Poland--History--19th century.
Polish literature--19th century--History and criticism--Congresses.
Princeton subject headings:
Polish literature--History and criticism.