Soars, L., Soars John, & Hancock, P. (2023). Headway: Upper Intermadiate, Student's book (quinta edición.). Oxford University Press.
Chicago Style aipamenaSoars, Liz, Soars John, and Paul Hancock. Headway: Upper Intermadiate, Student's Book. quinta edición. Oxford, United Kingdom: Oxford University Press, 2023.
MLA aipamenaSoars, Liz, et al. Headway: Upper Intermadiate, Student's Book. quinta edición. Oxford University Press, 2023.
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