Hughes,John. (2013). Telephone English; Includes phrase bank and role plays. MACMILLAN PUBLISHERS Ltd.
Čikaški stil citiranja (17. izdanje)Hughes,John. Telephone English; Includes Phrase Bank and Role Plays. MACMILLAN PUBLISHERS Ltd, 2013.
MLA način citiranja (8. izdanje)Hughes,John. Telephone English; Includes Phrase Bank and Role Plays. MACMILLAN PUBLISHERS Ltd, 2013.
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