Lesikar, R. V., Pettit, J. D., & Flatley, M. E. (1996). Lesikar's basic business communication (7th ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Lesikar, Raymond Vincent, John D. Pettit, agus Marie Elizabeth Flatley. Lesikar's Basic Business Communication. 7th ed. Chicago: Irwin, 1996.
Lua MLA (9ú heag.)Lesikar, Raymond Vincent, et al. Lesikar's Basic Business Communication. 7th ed. Irwin, 1996.
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