O'SHAUGHNESSY DOUGLAS. (2010). SPEECH COMMUNICATIONS (2nd.). TTI, BERHANPUR,WEST BENGAL.
Čikaški stil citiranja (17. izdanje)O'SHAUGHNESSY DOUGLAS. SPEECH COMMUNICATIONS. 2nd. TTI, BERHANPUR,WEST BENGAL, 2010.
MLA način citiranja (9. izdanje)O'SHAUGHNESSY DOUGLAS. SPEECH COMMUNICATIONS. 2nd. TTI, BERHANPUR,WEST BENGAL, 2010.
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