Crystal, D. (2003). English as a global language (Second edition.). Cambridge University Press.
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Chicago-čujuhus (17. p.)
Crystal, David. English as a Global Language. Second edition. Cambridge, England ; New York: Cambridge University Press, 2003.
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MLA-čujuhus (9. p.)
Crystal, David. English as a Global Language. Second edition. Cambridge University Press, 2003.
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