Lesikar, R. V., Pettit, J. D., & Flatley, M. E. (1999). Lesikar's basic business communication (8th ed., International ed.). Irwin/McGraw-Hill.
Cita Chicago (17th ed.)Lesikar, Raymond Vincent, John D. Pettit, i Marie Elizabeth Flatley. Lesikar's Basic Business Communication. 8th ed., International ed. Boston: Irwin/McGraw-Hill, 1999.
Cita MLA (8th ed.)Lesikar, Raymond Vincent, et al. Lesikar's Basic Business Communication. 8th ed., International ed. Irwin/McGraw-Hill, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.