Columbia subject headings:
Labor movement--Poland--History--20th century.
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989.
Harvard subject headings:
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989
Princeton subject headings:
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989.