CRYSTAL, D. (2003). English as a global language.-- ed.2. Cambridge University Press.
Chicago-čujuhus (17. p.)CRYSTAL, David. English as a Global Language.-- Ed.2. Cambridge: Cambridge University Press, 2003.
MLA-čujuhus (9. p.)CRYSTAL, David. English as a Global Language.-- Ed.2. Cambridge University Press, 2003.
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