APA citiranje

Doff, A., & Adrian Doff; Johanna Stirling; Sarah Ackroyd. (2011). English unlimited: C1, Advanced teachers pack. Cambridge: Cambridge University Press.

Trích dẫn kiểu Chicago

Doff, Adrian, và Adrian Doff; Johanna Stirling; Sarah Ackroyd. English Unlimited: C1, Advanced Teachers Pack. Cambridge: Cambridge University Press, 2011.

MLA citiranje

Doff, Adrian, và Adrian Doff; Johanna Stirling; Sarah Ackroyd. English Unlimited: C1, Advanced Teachers Pack. Cambridge: Cambridge University Press, 2011.

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