PWN

PWN

Letter from Irena Krońska written in 08.06.1954

Letter to Władysław Tatarkiewicz written 08.02.1962

Letter from Irena Krońska written in 07.06.1955

Letter from Tadeusz Czeżowski written 20.12.1957

Letter from Irena Krońska written in 18.06.1962

Letter to Irena Krońska written in 12.01.1955

Letter from Tadeusz Czeżowski written 29.05.1958

Letter from Władysław Tatarkiewicz written 21.01.1961

Letter from Irena Krońska written in 07.06.1955 (a)

Letter from Irena Krońska written in 06.09.1962

Letter from Irena Krońska written in 22.10.1960

Letter to the National Scientific Publishers written 24.02.1969