There has been data ("Koniec Pokoju, Poczatek Wojny: Niemieckie Dziaania Dywersyjne W Kampanii Polskiej 1939 R.: Wybrane Aspekty") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Sun Dec 22 02:11:22 2019, so the data displayed here has been removed .