Search for: [Subject and Keywords = Poland] OR [Subject and Keywords = biographical dictionaries] OR [Subject and Keywords = Polska] OR [Subject and Keywords = słowniki biograficzne] OR [Title = Piotr, zwany Penakiem \- Piotrowski Mieczysław Tadeusz] OR [Title = Piotr, zwany Penakiem \- Piotrowski Mieczysław Tadeusz]