APA (7th ed.) Citation

Glenn, E. C., Glenn, P. J., & Forman, S. H. (1998). Your voice and articulation (4th ed.). Allyn and Bacon.

Chicago Style (17th ed.) Citation

Glenn, Ethel C., Phillip J. Glenn, and Sandra H. Forman. Your Voice and Articulation. 4th ed. Boston: Allyn and Bacon, 1998.

MLA (9th ed.) Citation

Glenn, Ethel C., et al. Your Voice and Articulation. 4th ed. Allyn and Bacon, 1998.