Comfort, J. (2004). Effective telephonning: Oxford business english skills. Oxford: Oxford University Press.
Čikaški stil citiranjaComfort, Jeremy. Effective Telephonning: Oxford Business English Skills. Oxford: Oxford University Press, 2004.
MLA način citiranjaComfort, Jeremy. Effective Telephonning: Oxford Business English Skills. Oxford: Oxford University Press, 2004.
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