Cita APA (7th ed.)

Lucas, S. E. (2012). The art of public speaking (11th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Lucas, Stephen E. The Art of Public Speaking. 11th ed. New York: McGraw-Hill, 2012.

Cita MLA (9th ed.)

Lucas, Stephen E. The Art of Public Speaking. 11th ed. McGraw-Hill, 2012.