Search for: [Subject and Keywords = czasopisma 20 w.] OR [Subject and Keywords = Olkusz \(Polska \; region\)] OR [Subject and Keywords = czasopisma polskie] OR [Subject and Keywords = wydawnictwa urzędowe] OR [Subject and Keywords = prawo] OR [Subject and Keywords = prasa wojskowa] OR [Title = Amtsblatt des Kreises Olkusz. 1917, nr 1]