Dwyer, J. (2003). The business communication handbookJudith Dwyer. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Dwyer, Judith. The Business Communication HandbookJudith Dwyer. Prentice Hall, 2003.
Lua MLA (8ú heag.)Dwyer, Judith. The Business Communication HandbookJudith Dwyer. Prentice Hall, 2003.
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