Denny, R. (2002). Speak for yourself: Tested techniques for improving your communication and presentation skills. Kogan Page ; USB Publishers' Distributors Ltd..
Chicago Style (17. basım) AtıfDenny, Richard. Speak for Yourself: Tested Techniques for Improving Your Communication and Presentation Skills. London : New Delhi: Kogan Page ; USB Publishers' Distributors Ltd., 2002.
MLA (8th ed.) AtıfDenny, Richard. Speak for Yourself: Tested Techniques for Improving Your Communication and Presentation Skills. Kogan Page ; USB Publishers' Distributors Ltd., 2002.
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