Prokop-Janiec, E. (2016). Reading Opatoshu in the years 1918-1939: The Polish perspective / Eugenia Prokop-Janiec. Polin.
Citazione stile Chigago Style (17a edizione)Prokop-Janiec, Eugenia. "Reading Opatoshu in the Years 1918-1939: The Polish Perspective / Eugenia Prokop-Janiec." Polin 2016.
Citatione MLA (8a ed.)Prokop-Janiec, Eugenia. "Reading Opatoshu in the Years 1918-1939: The Polish Perspective / Eugenia Prokop-Janiec." Polin, 2016.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.