Search for: [Subject and Keywords = 20w.] OR [Subject and Keywords = 1968] OR [Subject and Keywords = Czechosłowacja] OR [Subject and Keywords = opozycja] OR [Subject and Keywords = Polska] OR [Subject and Keywords = Polska Rzeczpospolita Ludowa] OR [Subject and Keywords = PRL] OR [File name = Rady robotnicze w Czechosłowacji 1968\-69] OR [Creator = Szlajfer, Henryk]
