Treece, M. (1994). Successful communication for business and the professions (6th ed.). Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Treece, Malra. Successful Communication for Business and the Professions. 6th ed. Boston: Allyn and Bacon, 1994.
Lua MLA (9ú heag.)Treece, Malra. Successful Communication for Business and the Professions. 6th ed. Allyn and Bacon, 1994.
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