Columbia subject headings:
Harvard subject headings:
Forst de Battaglia, Otto, 1889-1965--Congresses.
Historians--Austria--Biography--Congresses.
Poland--Historiography--Congresses.
Polish literature--19th century--History and criticism--Congresses.
Polish literature--20th century--History and criticism--Congresses.
Princeton subject headings:
Forst de Battaglia, Otto, 1889-1965--Congresses.
Genealogists--Poland--Biography--Congresses.
Historians--Poland--Biography--Congresses.
John III Sobieski, King of Poland, 1629-1696--Congresses.
Literary historians--Austria--Biography--Congresses.