Columbia subject headings:
Harvard subject headings:
NSZZ "Solidarność" (Labor organization)--Congresses.
Poland--History--1980---Congresses.
Poland--Politics and government--1980-1989--Congresses.
Social movements--Poland--Congresses.
Princeton subject headings:
Poland--Economic conditions--1981-1990.
Poland--Intellectual life--1945-1989.
Poland--Politics and government--1980-1989.
Poland--Social conditions--1980-1989.