Hensel, Witold
The beginnings of the Polish state / Witold Hensel
Polonia Publishing House, 1960
 Buku Teks
Wrochno, Krystyna, author
Woman in Poland
Interpress Publishers, 1969
 Buku Teks
Arnold, Stanislaw
Outline history of Poland : from the beginning of the state to the present time / Stanislaw Arnold and Marian Zychowski
Polonia Publishing House, 1962
 Buku Teks
Zalewska-Trafiszowa, Halina.
The educational system in Poland / Halina Zalewska-Trafiszowa
Polonia Pub. House, 1966
 Buku Teks
Januszkiewicz, Franciszek, author
Education in Poland
Interpress Publishers, 1973
 Buku Teks
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