1. Weaver, Borchers and Smith. 1952.The Teaching of Speech, 524New York: Prentice‐Hall.
2. McBurney and Wrage. 1953.The Art of Good Speech, 21–52. New York: Prentice‐Hall.
3. Thonssen and Baird. 1948.Speech Criticism, 331–464. New York: Ronald Press.