Pierre, G. (2013). ABC's for speakers & presenters: Speaking and presenting simplified. Bartica Publishing.
Chicago-Zitierstil (17. Ausg.)Pierre, Gloria. ABC's for Speakers & Presenters: Speaking and Presenting Simplified. [Ashland, Kentucky]: Bartica Publishing, 2013.
MLA-Zitierstil (9. Ausg.)Pierre, Gloria. ABC's for Speakers & Presenters: Speaking and Presenting Simplified. Bartica Publishing, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.