Citazione Stile APA (7a Edizione)

Silvis, C. A. (2015). Presentation skills: One hour workshop. Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Silvis, Carol A. Presentation Skills: One Hour Workshop. Boston, Massachusetts: Cengage Learning, 2015.

Citatione MLA (9a ed.)

Silvis, Carol A. Presentation Skills: One Hour Workshop. Cengage Learning, 2015.