Murphy Herta A. (2008). Effective Business Communication (7th.). McGraw Hill.
Cita Chicago (17th ed.)Murphy Herta A. Effective Business Communication. 7th. McGraw Hill, 2008.
Cita MLA (9th ed.)Murphy Herta A. Effective Business Communication. 7th. McGraw Hill, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.