Cita APA (7th ed.)

Lucas, S. (2009). The art of public speaking (10th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Lucas, Stephen. The Art of Public Speaking. 10th ed. Boston: McGraw-Hill, 2009.

Cita MLA (9th ed.)

Lucas, Stephen. The Art of Public Speaking. 10th ed. McGraw-Hill, 2009.