Harrison, M. (2001). CPE practice tests: Four new tests for the revised Cambridge Certificate of Proficiency in English. Oxford University Press.
Citace podle Chicago (17th ed.)Harrison, Mark. CPE Practice Tests: Four New Tests for the Revised Cambridge Certificate of Proficiency in English. Oxford: Oxford University Press, 2001.
Citace podle MLA (8th ed.)Harrison, Mark. CPE Practice Tests: Four New Tests for the Revised Cambridge Certificate of Proficiency in English. Oxford University Press, 2001.
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