Citazione Stile APA (7a Edizione)

Coopman, S. J., & Lull, J. (2018). Public speaking: The evolving art (Fourth edition.). Cengage Learning.

Citazione stile Chigago Style (17a edizione)

Coopman, Stephanie J., e James Lull. Public Speaking: The Evolving Art. Fourth edition. Boston, Massachusetts: Cengage Learning, 2018.

Citatione MLA (9a ed.)

Coopman, Stephanie J., e James Lull. Public Speaking: The Evolving Art. Fourth edition. Cengage Learning, 2018.