Archive of Science PAN in Cracow

Archive of Science PAN in Cracow

Letter to the Committee of the Library of Classics of Philosophy written 09.07.1951

Letter to the Polish Academy of Science written 10.02.1966

Letter to the National Scientific Publishers written n/d

Letter to Irena Krońska written in 19.01.1955

Letter to the Polish Academy of Science written 24.10.1963

Letter from Stefan Żółkiewski written in 29.05.1966

Letter to the National Scientific Publishers written 20.05.1964

Letter from Irena Krońska written in 12.07.1946

Letter from Irena Krońska written in 04.03.1967

Letter from Irena Krońska written in 17.11.1954

Letter to the Polish Academy of Science written 19.10.1963

Letter from Henryk Markiewicz written 15.07.1963