Columbia subject headings:
Harvard subject headings:
Comparative government--History--Congresses.
Political customs and rites--History--Congresses.
Political science--History--Congresses
Political stability--History--Congresses.
Power (Social sciences)--History--Congresses.
Princeton subject headings:
Comparative government--History--Congresses.
Political customs and rites--History--Congresses.
Political science--History--Congresses.
Political stability--History--Congresses.
Power (Social sciences)--History--Congresses.