Style de citation APA (7e éd.)

Keith, W. M., & Lundberg, C. O. (2020). Public speaking: Choices and responsibility (Third edition.). Cengage.

Style de citation Chicago (17e éd.)

Keith, William M., et Christian O. Lundberg. Public Speaking: Choices and Responsibility. Third edition. Boston, MA: Cengage, 2020.

Style de citation MLA (9e éd.)

Keith, William M., et Christian O. Lundberg. Public Speaking: Choices and Responsibility. Third edition. Cengage, 2020.