Cita APA (7a ed.)

Osborn, M. (2015). Public speaking: Finding your voice (Tenth edition.). Pearson.

Cita Chicago Style (17a ed.)

Osborn, Michael. Public Speaking: Finding Your Voice. Tenth edition. Harlow, England: Pearson, 2015.

Cita MLA (8a ed.)

Osborn, Michael. Public Speaking: Finding Your Voice. Tenth edition. Pearson, 2015.