Columbia subject headings:
Labor unions--Poland.
Poland--Economic conditions--1945-
Poland--Politics and government--1989-
Working class--Poland.
Harvard subject headings:
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989
Princeton subject headings:
Labor unions--Poland.
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1945-1980.
Poland--Politics and government--1980-1989.