Cita APA (7th ed.)
Jeffrey, R. C., & Peterson, O. (1989). Speech: A basic text (3rd ed.). Harper and Row.
Cita Chicago (17th ed.)
Jeffrey, Robert C., i Owen Peterson. Speech: A Basic Text. 3rd ed. New York: Harper and Row, 1989.
Cita MLA (9th ed.)
Jeffrey, Robert C., i Owen Peterson. Speech: A Basic Text. 3rd ed. Harper and Row, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.