APA-čujuhus (7. p.)
Piechurska-Kuciel, E., & Piasecka, L. (2012). Variability and stability in foreign and second language learning contexts. Cambridge Scholars.
Chicago-čujuhus (17. p.)
Piechurska-Kuciel, Ewa, juo Liliana Piasecka. Variability and Stability in Foreign and Second Language Learning Contexts. Newcastle: Cambridge Scholars, 2012.
MLA-čujuhus (9. p.)
Piechurska-Kuciel, Ewa, juo Liliana Piasecka. Variability and Stability in Foreign and Second Language Learning Contexts. Cambridge Scholars, 2012.
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