Boone, D. R. (1997). Is your voice telling on youn: How to find and use your natural voice (2nd ed.). Singular Pub. Group.
Chicago Style (17. basım) AtıfBoone, Daniel R. Is Your Voice Telling on Youn: How to Find and Use Your Natural Voice. 2nd ed. San Diego, Calif: Singular Pub. Group, 1997.
MLA (9th ed.) AtıfBoone, Daniel R. Is Your Voice Telling on Youn: How to Find and Use Your Natural Voice. 2nd ed. Singular Pub. Group, 1997.
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