There has been data ("Swiadomosc Sowianska Jana Kochanowskiego: Z Zagadnien Psychiki Polskiego Renesansu = Jan Kochanowski's Sense of Slavonic Identity: Selected Issues in") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Sun Jan 5 00:51:58 2020, so the data displayed here has been removed .