SpringerLink (Online service), King, K. A., Lai, Y., & May, S. (2017). Research Methods in Language and Education (3rd ed. 2017.). Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Kendall A. King, Yi-Ju Lai, και Stephen May. Research Methods in Language and Education. 3rd ed. 2017. Cham: Springer International Publishing : Imprint: Springer, 2017.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Research Methods in Language and Education. 3rd ed. 2017. Springer International Publishing : Imprint: Springer, 2017.
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