Powell, M. (2002). Presenting in English: How to give successful presentations. Thomson/Heinle.
Chicago Style (17. basım) AtıfPowell, Mark. Presenting in English: How to Give Successful Presentations. Boston: Thomson/Heinle, 2002.
MLA (8th ed.) AtıfPowell, Mark. Presenting in English: How to Give Successful Presentations. Thomson/Heinle, 2002.
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