organizational issues

organizational issues

Protocol from the meeting of the PPS Board 12.05.1957

Letter from Stefan Żółkiewski written in 03.01.1961

Letter from Tadeusz Kotarbiński written 02.12.1967

Letter from Kazimierz Ajdukiewicz written 8/7/1948

Letter from Tadeusz Kotarbiński written 05.10.1957

Postcard from Kazimierz Ajdukiewicz written 10/10/1948

Letter from Kazimierz Ajdukiewicz written 17.11.1949

Letter from Tadeusz Kotarbiński written 24.10.1936

Letter to Tadeusz Kotarbiński written 17.07.1948

Letter to Stefan Żółkiewski written in 05.02.1964

Letter from Stefan Żółkiewski written in 23.12.1965

Letter from Tadeusz Kotarbiński written 30.06.1966