Tubbs, S. L. (1987). Human communication (5th. ed.). Randon House.
Cita Chicago (17th ed.)Tubbs, Stewart L. Human Communication. 5th. ed. Randon House, 1987.
Cita MLA (9th ed.)Tubbs, Stewart L. Human Communication. 5th. ed. Randon House, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.