Denny, R. (2002). Speak for yourself: Tested techniques for improving your communication and presentation skills. Kogan Page ; USB Publishers' Distributors Ltd..
Chicago (17e ed.) BronvermeldingDenny, Richard. Speak for Yourself: Tested Techniques for Improving Your Communication and Presentation Skills. London : New Delhi: Kogan Page ; USB Publishers' Distributors Ltd., 2002.
MLA (8e ed.) BronvermeldingDenny, Richard. Speak for Yourself: Tested Techniques for Improving Your Communication and Presentation Skills. Kogan Page ; USB Publishers' Distributors Ltd., 2002.
Let op: Deze citaties zijn niet altijd 100% accuraat.