Wahlstrom, B. J. (1992). Perspectives on human communication. Wm. C. Brown.
Lua i Stíl Chicago (17ú heag.)Wahlstrom, Billie J. Perspectives on Human Communication. Dubuque, Iowa: Wm. C. Brown, 1992.
Lua MLA (8ú heag.)Wahlstrom, Billie J. Perspectives on Human Communication. Wm. C. Brown, 1992.
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