UMIŃSKI Joseph. Andrzej biskup zwierzyński w latach 1348-1356. Lwów 1936. Zakład Narodowy im Ossolińskich. Pp. 29; 25cm.
Original softcover. Good condition, minor soiling to the binding, minor edge tears to a few pages.
On the pre-title page the author's dedication to Adam Vetulani.
Józef Umiński (1888-1954) - Polish Catholic priest, papal prelate and historian.
Adam Vetulani (1901-1976) - Polish legal historian specializing in the history of canon law, academic lecturer, organizer of scientific life, activist in the popular and military movements