Columbia subject headings:
Harvard subject headings:
Comparative government--Congresses
Dominant-party systems.
One-party systems--Congresses.
Opposition (Political science)--Congresses.
Political parties--Congresses
Representative government and representation--Congresses
Princeton subject headings:
Comparative government--Congresses.
One-party systems--Congresses.
Opposition (Political science)--Congresses.
Political parties--Congresses.
Representative government and representation--Congresses.