Boone, L. E., Kurtz, D. L., & Block, J. R. (1997). Contemporary business communication (2nd ed.). Prentice Hall,.

Boone, Louis E., David L. Kurtz, and Judy Rachel Block. Contemporary Business Communication. 2nd ed. Upper Saddle River, NJ: Prentice Hall,, 1997.

Boone, Louis E., et al. Contemporary Business Communication. 2nd ed. Prentice Hall,, 1997.