Columbia subject headings:
Harvard subject headings:
Labor unions--Poland--History--20th century.
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989
Poland--Social conditions--1980-
Princeton subject headings:
Cold War--Social aspects .
Labor unions--Poland--Sociological aspects.
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989.
World politics--1945-1989.