Galvin, K. M., & Cooper, P. J. (1999). The basics of speech: Learning to be a competent communicator (3rd ed.). National Textbook Co..

Galvin, Kathleen M., and Pamela J. Cooper. The Basics of Speech: Learning to Be a Competent Communicator. 3rd ed. Lincolnwood, Ill.: National Textbook Co., 1999.

Galvin, Kathleen M., and Pamela J. Cooper. The Basics of Speech: Learning to Be a Competent Communicator. 3rd ed. National Textbook Co., 1999.