Fisher, J. E. (1994). Telephone skills at work. Business One Irwin/Mirror Press.
Cita Chicago (17th ed.)Fisher, Judith E. Telephone Skills at Work. Burr Ridge, Ill.: Business One Irwin/Mirror Press, 1994.
Cita MLA (8th ed.)Fisher, Judith E. Telephone Skills at Work. Business One Irwin/Mirror Press, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.