Cita APA (7th ed.)

Secord, W., Shames, G. H., & Wiig, E. H. (1994). Human communication disorders: An introduction (4th ed.). Merrill.

Cita Chicago (17th ed.)

Secord, Wayne, George H. Shames, i Elisabeth H. Wiig. Human Communication Disorders: An Introduction. 4th ed. New York: Merrill, 1994.

Cita MLA (9th ed.)

Secord, Wayne, et al. Human Communication Disorders: An Introduction. 4th ed. Merrill, 1994.