protocol

protocol

Protocol from the meeting of the PPS Board 12.05.1957

Letter to Kazimierz Ajdukiewicz written 15.03.1956

Letter from Tadeusz Kotarbiński written 02.12.1967

Letter to Kazimierz Ajdukiewicz written 3/15/1956

Letter from Tadeusz Kotarbiński written 05.10.1957