Prokop-Janiec, E. (2016). Reading Opatoshu in the years 1918-1939: The Polish perspective / Eugenia Prokop-Janiec. Polin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रProkop-Janiec, Eugenia. "Reading Opatoshu in the Years 1918-1939: The Polish Perspective / Eugenia Prokop-Janiec." Polin 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रProkop-Janiec, Eugenia. "Reading Opatoshu in the Years 1918-1939: The Polish Perspective / Eugenia Prokop-Janiec." Polin, 2016.
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