APA (7 वां संस्करण) प्रशस्ति पत्र
Janczukowicz, K. (2014). Teaching English pronunciation at the secondary school level. Peter Lang.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Janczukowicz, Karolina. Teaching English Pronunciation at the Secondary School Level. Frankfurt, Germany: Peter Lang, 2014.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Janczukowicz, Karolina. Teaching English Pronunciation at the Secondary School Level. Peter Lang, 2014.
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