Jolles, R. L. (2017). How to run seminars & workshops: Presentation skills for consultants, trainers, teachers, and salespeople (Fourth edition.). Wiley.
Citazione stile Chigago Style (17a edizione)Jolles, Robert L. How to Run Seminars & Workshops: Presentation Skills for Consultants, Trainers, Teachers, and Salespeople. Fourth edition. Hoboken, New Jersey: Wiley, 2017.
Citatione MLA (9a ed.)Jolles, Robert L. How to Run Seminars & Workshops: Presentation Skills for Consultants, Trainers, Teachers, and Salespeople. Fourth edition. Wiley, 2017.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.