Cita APA (7th ed.)

Acker, M. (2023). Speak with confidence: Overcome self-doubt, communicate clearly, and inspire your audience. John Wiley & Sons, Inc..

Cita Chicago (17th ed.)

Acker, Mike. Speak with Confidence: Overcome Self-doubt, Communicate Clearly, and Inspire Your Audience. Hoboken, New Jersey: John Wiley & Sons, Inc., 2023.

Cita MLA (9th ed.)

Acker, Mike. Speak with Confidence: Overcome Self-doubt, Communicate Clearly, and Inspire Your Audience. John Wiley & Sons, Inc., 2023.