Samovar, L. A. (1986). Oral communication: Message and response. Win C. Brown.
Lua i Stíl Chicago (17ú heag.)Samovar, Larry A. Oral Communication: Message and Response. Win C. Brown, 1986.
Lua MLA (9ú heag.)Samovar, Larry A. Oral Communication: Message and Response. Win C. Brown, 1986.
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