Doff, A., & Goldstein, B. (2011). English unlimited: Advanced. Coursebook with e-Portfolio. C1. Cambridge University Press.
Citace podle Chicago (17th ed.)Doff, Adrian, a Ben Goldstein. English Unlimited: Advanced. Coursebook with E-Portfolio. C1. Cambridge: Cambridge University Press, 2011.
Citace podle MLA (9th ed.)Doff, Adrian, a Ben Goldstein. English Unlimited: Advanced. Coursebook with E-Portfolio. C1. Cambridge University Press, 2011.
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