Columbia subject headings:
Harvard subject headings:
Austria--History, Military--17th century--Congresses.
Austria--History--17th century--Congresses.
Poland--History, Military--17th century--Congresses.
Poland--History--17th century--Congresses.
Princeton subject headings:
Austria--History, Military--17th century--Congresses.
Austria--History--17th century--Congresses.
Poland--History, Military--17th century--Congresses.
Poland--History--17th century--Congresses.