Flatley, M. E., & Pettit, J. D. (1993). Basic business communication (6th ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Flatley, Marie E., agus John D. Pettit. Basic Business Communication. 6th ed. Boston: Irwin, 1993.
Lua MLA (9ú heag.)Flatley, Marie E., agus John D. Pettit. Basic Business Communication. 6th ed. Irwin, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.