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Letter to Władysław Tatarkiewicz written 27.06.1969

Letter from Irena Krońska written in 19.05.1954

Letter to the National Scientific Publishers written 30.03.1963

Letter to the Committee of the Library of Classics of Philosophy written 27.04.1954

Bibliography of Anna Teresa Tymieniecka written n/d

Letter from Irena Krońska written in 18.06.1962

Letter to the National Scientific Publishers written 31.01.1963

Contract with the National Scientific Publishers written 10.12.1954

Letter from Irena Krońska written in 11.07.1961

Letter from Irena Krońska written in 22.10.1960

Letter from Irena Krońska written in 16.08.1963

Letter to Roman Ingarden written 11.05.1963