Cambridge University Press. (2020). C1 Advanced Trainer 2: Six practice tests with answers. Cambridge University Press.
Citace podle Chicago (17th ed.)Cambridge University Press. C1 Advanced Trainer 2: Six Practice Tests with Answers. Poland; Cambridge, United Kingdom: Cambridge University Press, 2020.
Citace podle MLA (9th ed.)Cambridge University Press. C1 Advanced Trainer 2: Six Practice Tests with Answers. Cambridge University Press, 2020.
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