Morlan, D. B., & Tuttle, G. E. (1976). An introduction to effective oral communication. The Bobbs-Merrill Co..
Lua i Stíl Chicago (17ú heag.)Morlan, Don B., agus George E. Tuttle. An Introduction to Effective Oral Communication. Indianapolis: The Bobbs-Merrill Co., 1976.
Lua MLA (9ú heag.)Morlan, Don B., agus George E. Tuttle. An Introduction to Effective Oral Communication. The Bobbs-Merrill Co., 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.