Cita APA (7th ed.)

German, K. M., Gronbeck, B. E., Ehninger, D., & Monroe, A. H. (2010). Principles of public speaking (17th ed.). Allyn and Bacon.

Cita Chicago (17th ed.)

German, Kathleen M., Bruce E. Gronbeck, Douglas Ehninger, i Alan H. Monroe. Principles of Public Speaking. 17th ed. Boston: Allyn and Bacon, 2010.

Cita MLA (9th ed.)

German, Kathleen M., et al. Principles of Public Speaking. 17th ed. Allyn and Bacon, 2010.