Columbia subject headings:
Czech language--Foreign countries--History--Congresses.
Czech language--History--17th century--Congresses.
Czech language--History--18th century--Congresses.
Harvard subject headings:
Czech language--Foreign countries--History--Congresses.
Czech language--History--17th century--Congresses.
Czech language--History--18th century--Congresses.
Princeton subject headings:
Czech language--Foreign countries--History--Congresses.
Czech language--History--17th century--Congresses.
Czech language--History--18th century--Congresses.