There has been data ("Polskie Zaplecze Josepha Conrada-Korzeniowskiego: Dokumenty Rodzinne, Listy, Wspomnienia - ISBN-13 978-83-89659-77-4") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Wed Jan 15 01:58:43 2020, so the data displayed here has been removed .