APA (7th ed.) Citation

Glenn, E. C., Glenn, P. J., & Forman, S. H. (1984). Your voice and articulation. Macmillan.

Chicago Style (17th ed.) Citation

Glenn, Ethel C., Phillip J. Glenn, and Sandra H. Forman. Your Voice and Articulation. New York: Macmillan, 1984.

MLA (9th ed.) Citation

Glenn, Ethel C., et al. Your Voice and Articulation. Macmillan, 1984.