Columbia subject headings:
NSZZ "Solidarność" (Labor organization)
Poland--Politics and government--1980-1989.
Harvard subject headings:
Poland--Politics and government--1980-1989
Poland--Politics and government--1989-
Princeton subject headings:
Labor unions--Political activity--Poland.
NSZZ "Solidarność" (Labor organization)--History.
Poland--History--1980-1989.
Poland--Politics and government--1980-1989.