Columbia subject headings:
Harvard subject headings:
Constitutional law--Europe--Congresses.
Constitutional law--United States--Congresses
Europe--Politics and government--Congresses.
United States--Politics and government--Congresses.
Princeton subject headings:
Constitutional law--Europe--Congresses.
Constitutional law--United States--Congresses.
Europe--Politics and government--Congresses.
United States--Politics and government--Congresses.