APA (7th ed.) Citation

Glenn, E. C., Glenn, P. J., & Forman, S. H. (1989). Your voice and articulation (2. ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Glenn, Ethel C., Phillip J. Glenn, and Sandra H. Forman. Your Voice and Articulation. 2. ed. Englewood Cliffs, NJ: Prentice Hall, 1989.

MLA (9th ed.) Citation

Glenn, Ethel C., et al. Your Voice and Articulation. 2. ed. Prentice Hall, 1989.