Tilbury, A., Hendra, L. A., Rea, D., & Clementson, T. (2011). English unlimited: Upper Intermediate. Coursebook with e-Portfolio. B2. Cambridge University Press.
Citace podle Chicago (17th ed.)Tilbury, Alex, Leslie Anne Hendra, David Rea, a Theresa Clementson. English Unlimited: Upper Intermediate. Coursebook with E-Portfolio. B2. Cambridge: Cambridge University Press, 2011.
Citace podle MLA (9th ed.)Tilbury, Alex, et al. English Unlimited: Upper Intermediate. Coursebook with E-Portfolio. B2. Cambridge University Press, 2011.
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