Citazione Stile APA (7a Edizione)

Griffin, C. L. (2009). Invitation to public speaking (3rd ed.). Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Griffin, Cindy L. Invitation to Public Speaking. 3rd ed. Mason, Ohio: Cengage Learning, 2009.

Citatione MLA (9a ed.)

Griffin, Cindy L. Invitation to Public Speaking. 3rd ed. Cengage Learning, 2009.