Cita APA (7th ed.)

Penrose, J. M. (2004). Business Communication for Managers (5th.). Cengage Learning.

Cita Chicago (17th ed.)

Penrose, John M. Business Communication for Managers. 5th. New Delhi: Cengage Learning, 2004.

Cita MLA (9th ed.)

Penrose, John M. Business Communication for Managers. 5th. Cengage Learning, 2004.