Cita APA (7th ed.)
Collins, P. (2012). The art of speeches and presentations: The secrets of making people remember what you say. Wiley.
Cita Chicago (17th ed.)
Collins, Philip. The Art of Speeches and Presentations: The Secrets of Making People Remember What You Say. Hoboken, N.J.: Wiley, 2012.
Cita MLA (9th ed.)
Collins, Philip. The Art of Speeches and Presentations: The Secrets of Making People Remember What You Say. Wiley, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.