Cita APA (7th ed.)
Hay, E. A. (1987). The speech communication workbook: Exercises and activities. Roxbury.
Cita Chicago (17th ed.)
Hay, Ellen A. The Speech Communication Workbook: Exercises and Activities. Los Angeles, Calif.: Roxbury, 1987.
Cita MLA (9th ed.)
Hay, Ellen A. The Speech Communication Workbook: Exercises and Activities. Roxbury, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.