Prokop-Janiec, E. (2016). Reading Opatoshu in the years 1918-1939: The Polish perspective / Eugenia Prokop-Janiec. Polin.
Cita Chicago (17th ed.)Prokop-Janiec, Eugenia. "Reading Opatoshu in the Years 1918-1939: The Polish Perspective / Eugenia Prokop-Janiec." Polin 2016.
Cita MLA (8th ed.)Prokop-Janiec, Eugenia. "Reading Opatoshu in the Years 1918-1939: The Polish Perspective / Eugenia Prokop-Janiec." Polin, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.