Cita APA (7th ed.)

DeVito, J. A. (2006). The essential elements of public speaking (2nd ed.). Pearson/Allyn and Bacon.

Cita Chicago (17th ed.)

DeVito, Joseph A. The Essential Elements of Public Speaking. 2nd ed. Boston: Pearson/Allyn and Bacon, 2006.

Cita MLA (9th ed.)

DeVito, Joseph A. The Essential Elements of Public Speaking. 2nd ed. Pearson/Allyn and Bacon, 2006.