Gronbeck, B. E. (1997). Principles and types of speech communication (13th ed.). Longman.
Cita Chicago (17th ed.)Gronbeck, Bruce E. Principles and Types of Speech Communication. 13th ed. New York: Longman, 1997.
Cita MLA (9th ed.)Gronbeck, Bruce E. Principles and Types of Speech Communication. 13th ed. Longman, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.