Cita APA (7th ed.)

Lucas Stephene. (2009). The Art of Public Speaking (10th ed.). Mc Graw Hill.

Cita Chicago (17th ed.)

Lucas Stephene. The Art of Public Speaking. 10th ed. New York: Mc Graw Hill, 2009.

Cita MLA (9th ed.)

Lucas Stephene. The Art of Public Speaking. 10th ed. Mc Graw Hill, 2009.