There has been data ("Strajki I Porozumienia W Ustrzykach Dolnych I Rzeszowie 1980/1981: Przebieg, Realizacja, Obchody Rocznicowe") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Sun Dec 22 02:11:18 2019, so the data displayed here has been removed .