Jolles, R. L. (2017). How to run seminars & workshops: Presentation skills for consultants, trainers, teachers, and salespeople (Fourth edition.). Wiley.
Cita Chicago (17th ed.)Jolles, Robert L. How to Run Seminars & Workshops: Presentation Skills for Consultants, Trainers, Teachers, and Salespeople. Fourth edition. Hoboken, New Jersey: Wiley, 2017.
Cita MLA (9th ed.)Jolles, Robert L. How to Run Seminars & Workshops: Presentation Skills for Consultants, Trainers, Teachers, and Salespeople. Fourth edition. Wiley, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.