Quintanilla,Kelly M. (2012). Business and Professional Communication: Keys for Worksplace Excellence (2nd.). Sage Pub.
Lua i Stíl Chicago (17ú heag.)Quintanilla,Kelly M. Business and Professional Communication: Keys for Worksplace Excellence. 2nd. New Delhi: Sage Pub, 2012.
Lua MLA (9ú heag.)Quintanilla,Kelly M. Business and Professional Communication: Keys for Worksplace Excellence. 2nd. Sage Pub, 2012.
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