Cita APA (7th ed.)

Lucas, S. E. (1995). The art of public speaking (5th ed.). McGraw hill.

Cita Chicago (17th ed.)

Lucas, Stephen E. The Art of Public Speaking. 5th ed. New York: McGraw hill, 1995.

Cita MLA (9th ed.)

Lucas, Stephen E. The Art of Public Speaking. 5th ed. McGraw hill, 1995.