APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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