Trent, J. D., Trent, J. S., & O'Neill, D. J. (1973). Concepts in communication. Allyn and Bacon.
Lua i Stíl Chicago (17ú heag.)Trent, Jimmie D., Judith S. Trent, agus Daniel J. O'Neill. Concepts in Communication. Boston: Allyn and Bacon, 1973.
Lua MLA (9ú heag.)Trent, Jimmie D., et al. Concepts in Communication. Allyn and Bacon, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.