APA (7th ed.) Zitazioa
Hay, E. A. (1987). The speech communication workbook: Exercises and activities. Roxbury.
Chicago Style (17th ed.) Zitazioa
Hay, Ellen A. The Speech Communication Workbook: Exercises and Activities. Los Angeles, Calif.: Roxbury, 1987.
MLA (9th ed.) Zitazioa
Hay, Ellen A. The Speech Communication Workbook: Exercises and Activities. Roxbury, 1987.
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