Kolasa, J. (1962). International intellectual cooperation: (the League experience and the beginnings of UNESCO). Zakład Narodowy im. Ossolińskich - Wydawnictwo.
Citazione stile Chigago Style (17a edizione)Kolasa, Jan. International Intellectual Cooperation: (the League Experience and the Beginnings of UNESCO). Wrocław: Zakład Narodowy im. Ossolińskich - Wydawnictwo, 1962.
Citatione MLA (9a ed.)Kolasa, Jan. International Intellectual Cooperation: (the League Experience and the Beginnings of UNESCO). Zakład Narodowy im. Ossolińskich - Wydawnictwo, 1962.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.