Fitzgerald, J. (1993). Business communications: Basic concepts, security, and design (4th ed.). John Wiley & Sons.
Cita Chicago (17th ed.)Fitzgerald, Jerry. Business Communications: Basic Concepts, Security, and Design. 4th ed. New York: John Wiley & Sons, 1993.
Cita MLA (9th ed.)Fitzgerald, Jerry. Business Communications: Basic Concepts, Security, and Design. 4th ed. John Wiley & Sons, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.