The book is hard to find. This copy is sold for 9000 CZK (380 Euro): https://www.trhknih.cz/kniha/9uwthe8b

Or you can read it in the study room of the National library (Klementinum): https://aleph.nkp.cz/F/83GIEU45K19XBDL2VVT6CJBMH2LA526L5YQ9U...