@book{Kroczak:2020,
author
=
"J.Kroczak",
title
=
"Kultura filozoficzna dawnej Rusi (XI-XIII wiek), ISBN: 9788376831930",
publisher
=
"Wydawnictwo IFiS PAN",
address
=
"Warszawa",
year
=
"2020",
pages
=
"274",
}