Doff, A. (2010). English unlimited: Starter. Coursebook with e-Portfolio. A1: Coursebook with e-Portfolio. A1. Cambridge University Press.
Citace podle Chicago (17th ed.)Doff, Adrian. English Unlimited: Starter. Coursebook with E-Portfolio. A1: Coursebook with E-Portfolio. A1. Cambridge, United Kingdom: Cambridge University Press, 2010.
Citace podle MLA (9th ed.)Doff, Adrian. English Unlimited: Starter. Coursebook with E-Portfolio. A1: Coursebook with E-Portfolio. A1. Cambridge University Press, 2010.
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