Murphy Herta A. (2008). Effective Business Communication (7th.). McGraw Hill.
Cita Chicago Style (17a ed.)Murphy Herta A. Effective Business Communication. 7th. McGraw Hill, 2008.
Cita MLA (9a ed.)Murphy Herta A. Effective Business Communication. 7th. McGraw Hill, 2008.
Precaución: Estas citas no son 100% exactas.