Search for: [Subject and Keywords = Twardzik, Waclaw] OR [Subject and Keywords = old Polish language] OR [Subject and Keywords = Twardzik, Wacław \(1937\- \) \[JHPBN\]] OR [Subject and Keywords = Język polski \[JHPBN\]] OR [Subject and Keywords = Języki słowiańskie \[JHPBN\]] OR [Subject and Keywords = Księgi pamiątkowe\[JHPBN\]] OR [Title = Amoenitates vel lepores philologiae] OR [Title = Amoenitates vel lepores philologiae]