Columbia subject headings:
German literature--Prussia, East (Poland and Russia)--History and criticism--Congresses.
Prussia, East (Poland and Russia)--Literatures--History and criticism--Congresses.
Harvard subject headings:
German literature--Prussia, East (Poland and Russia)--History and criticism--Congresses.
Prussia, East (Poland and Russia)--Literatures--History and criticism--Congresses.
Princeton subject headings:
German literature--Prussia, East (Poland and Russia)--History and criticism--Congresses.
Prussia, East (Poland and Russia)--Literatures--History and criticism--Congresses.