There has been data ("Blokada: Blokada Warszawskiego Ronda I Konflikt Wokao Obniczenia Norm Przydziau Minesa W Sierpniu 1981 Roku") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Wed Jan 15 05:17:39 2020, so the data displayed here has been removed .