Soars, J., & Soars, L. (2007). New headway: Pre - Intermediate : Student's book (3rd ed.). Oxford: Oxford Univ. Press.
Παραπομπή Chicago StyleSoars, John, και Liz Soars. New Headway: Pre - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.
Παραπομπή MLASoars, John, και Liz Soars. New Headway: Pre - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2007.
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