APA (7th ed.) Citation

Ehninger, D. (1982). Principles and types of speech communication (9th ed.). Scott, Foresman.

Chicago Style (17th ed.) Citation

Ehninger, Douglas. Principles and Types of Speech Communication. 9th ed. Glenview, Ill: Scott, Foresman, 1982.

MLA (9th ed.) Citation

Ehninger, Douglas. Principles and Types of Speech Communication. 9th ed. Scott, Foresman, 1982.