Pearson, J. C., & Nelson, P. E. (1994). Understanding & sharing: An introduction to speech communication (6th ed.). WCB.
Lua i Stíl Chicago (17ú heag.)Pearson, Judy Cornelia, agus Paul Edward Nelson. Understanding & Sharing: An Introduction to Speech Communication. 6th ed. Iowa: WCB, 1994.
Lua MLA (9ú heag.)Pearson, Judy Cornelia, agus Paul Edward Nelson. Understanding & Sharing: An Introduction to Speech Communication. 6th ed. WCB, 1994.
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