Machan, T. W. (2013). What is English ? And Why Should we Care? OUP.
Lua i Stíl Chicago (17ú heag.)Machan, Tim William. What Is English ? And Why Should We Care? UK: OUP, 2013.
Lua MLA (9ú heag.)Machan, Tim William. What Is English ? And Why Should We Care? OUP, 2013.
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