Styring, J., Tims, N., & Chilton, H. (2021). Prepare: B2 Level 7, Student's book with Ebook (Second edition update 2021.). Cambridge University Press.
Cita Chicago Style (17a ed.)Styring, James, Nicholas Tims, y Helen Chilton. Prepare: B2 Level 7, Student's Book with Ebook. Second edition update 2021. Cambridge: Cambridge University Press, 2021.
Cita MLA (9a ed.)Styring, James, et al. Prepare: B2 Level 7, Student's Book with Ebook. Second edition update 2021. Cambridge University Press, 2021.
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