Havelock, E. A., & Hershbell, J. P. (1978). Communication arts in the ancient world. Hastings House.
Lua i Stíl Chicago (17ú heag.)Havelock, Eric Alfred, agus Jackson P. Hershbell. Communication Arts in the Ancient World. New York: Hastings House, 1978.
Lua MLA (9ú heag.)Havelock, Eric Alfred, agus Jackson P. Hershbell. Communication Arts in the Ancient World. Hastings House, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.