Collins, P. (2012). The art of speeches and presentations: The secrets of making people remember what you say. Wiley.
Chicago-Zitierstil (17. Ausg.)Collins, Philip. The Art of Speeches and Presentations: The Secrets of Making People Remember What You Say. Hoboken, NJ: Wiley, 2012.
MLA-Zitierstil (9. Ausg.)Collins, Philip. The Art of Speeches and Presentations: The Secrets of Making People Remember What You Say. Wiley, 2012.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.