Tubbs, S. L. (1987). Human communication (5th. ed.). Randon House.
Lua i Stíl Chicago (17ú heag.)Tubbs, Stewart L. Human Communication. 5th. ed. Randon House, 1987.
Lua MLA (9ú heag.)Tubbs, Stewart L. Human Communication. 5th. ed. Randon House, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.