APA citiranje

Alex Tilbury. (2011). English unlimited. B2, Upper Intermediate Coursebook with e-Portfolio. Cambridge: Cambridge University Press.

Trích dẫn kiểu Chicago

Alex Tilbury. English Unlimited. B2, Upper Intermediate Coursebook With E-Portfolio. Cambridge: Cambridge University Press, 2011.

MLA citiranje

Alex Tilbury. English Unlimited. B2, Upper Intermediate Coursebook With E-Portfolio. Cambridge: Cambridge University Press, 2011.

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