Columbia subject headings:
Great Britain--Politics and government--1945---Congresses.
Political sociology--Congresses.
Social classes--Great Britain--Congresses.
Social structure--Great Britain--Congresses.
Harvard subject headings:
Great Britain--Politics and government--1945---Congresses.
Political sociology--Congresses
Social classes--Great Britain--Congresses.
Social structure--Great Britain--Congresses.
Princeton subject headings:
Great Britain--Politics and government--1945---Congresses.
Political sociology--Congresses.
Social classes--Great Britain--Congresses.
Social structure--Great Britain--Congresses.