Barker, L. L., & Gaut, D. A. (1996). Communication (7th ed.). Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Barker, Larry Lee, agus Deborah A. Gaut. Communication. 7th ed. Boston: Allyn and Bacon, 1996.
Lua MLA (9ú heag.)Barker, Larry Lee, agus Deborah A. Gaut. Communication. 7th ed. Allyn and Bacon, 1996.
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