Lua APA (7ú heag.)

Roebuck, D. B., & McKenney, M. A. (2005). Improving business communication skills (4th ed.). Pearson Education.

Lua i Stíl Chicago (17ú heag.)

Roebuck, Deborah Britt, agus Mary Ann McKenney. Improving Business Communication Skills. 4th ed. Upper Saddle, New Jersey: Pearson Education, 2005.

Lua MLA (9ú heag.)

Roebuck, Deborah Britt, agus Mary Ann McKenney. Improving Business Communication Skills. 4th ed. Pearson Education, 2005.

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