Cita APA (7a ed.)
Comfort, J., & Utley, D. (1996). Effective telephoning. Oxford University Press.
Cita Chicago Style (17a ed.)
Comfort, Jeremy, y Derek Utley. Effective Telephoning. Oxford: Oxford University Press, 1996.
Cita MLA (9a ed.)
Comfort, Jeremy, y Derek Utley. Effective Telephoning. Oxford University Press, 1996.
Precaución: Estas citas no son 100% exactas.