History -- Sources Sources -- Case studies 1 Case studies -- 1 Collective bargaining -- 1 Gdansk Agreement 1989 1 more ... History, Military -- 1 Labor policy -- 1 Literature and the war 1 Literature and war -- 1 Preparatory school students in literature 1 Preparatory schools -- 1 War and society -- 1 World War, 1939-1945 -- 1 less ...