Title: NSZZ "Solidarność" w regionie łódzkim w dokumentach Służby Bezpieczeństwa 1980 - 1981
Subjects: Politics and government, Sources, Congresses, Labor unions, NSZZ "Solidarność" (Labor organization), Political activity, History
Places: Poland, Łódź Region (Poland), Łódź Region
Time periods: 20th century